Abstract
We find examples of positive integers such that is a perfect square.
Citation
Luis Elesban Santos Cruz. Florian Luca. "Power values of the product of the Euler function and the sum of divisors function." Involve 8 (5) 745 - 748, 2015. https://doi.org/10.2140/involve.2015.8.745
Information
Received: 19 October 2013; Revised: 29 August 2014; Accepted: 7 September 2014; Published: 2015
First available in Project Euclid: 22 November 2017
zbMATH: 1367.11014
MathSciNet: MR3404653
Digital Object Identifier: 10.2140/involve.2015.8.745
Subjects:
Primary:
11A25
,
11B68
Keywords:
Euler function
,
sum of divisors
Rights: Copyright © 2015 Mathematical Sciences Publishers