Results 161 to 170 of about 31,208 (175)

The algebraic independence of the sum of divisors functions

Journal of Number Theory, 2010
Daniel Lustig
exaly  

The range of the sum-of-proper-divisors function

Acta Arithmetica, 2015
Florian Luca, Carl Pomerance
exaly  

On the composition of the Euler function and the sum of divisors function

Colloquium Mathematicum, 2007
Jean-Marie De Koninck
exaly  

Primitive root bias for twin primes II: Schinzel-type theorems for totient quotients and the sum-of-divisors function

Journal of Number Theory, 2020
Stephan Ramon Garcia, Florian Luca, Gabriel Udell   +2 more
exaly  

A conjecture of De Koninck regarding particular square values of the sum of divisors function

Journal of Number Theory, 2014
Daniel Delbourgo
exaly  

Polygon Numbers Associated with the Sum of Odd Divisors Function

Experimental Mathematics, 2017
Abdelmejid BAYAD
exaly  

Errata to Iterating the Sum-of-Divisors Function

Experimental Mathematics, 1997
Graeme L. Cohen, Herman J. J. te Riele
openaire   +1 more source

An Ω-theorem for an error term related to the sum-of-divisors function

Monatshefte Fur Mathematik, 1987
exaly  

On the Divisors of the Sum of Geometrical Series Whose First Term is Unity and Common Ratio any Positive or Negative Integer

Nature, 1888
exaly  

The sum of divisors of a quadratic form

Acta Arithmetica, 2014
exaly