English

A note on odd perfect numbers

Number Theory 2016-12-08 v6

Abstract

In this note, we show that if NN is an odd perfect number and qαq^{\alpha} is some prime power exactly dividing it, then σ(N/qα)/qα>5\sigma(N/q^{\alpha})/q^{\alpha}>5. In general, we also show that if σ(N/qα)/qα<K\sigma(N/q^{\alpha})/q^{\alpha}<K, where KK is any constant, then NN is bounded by some function depending on KK.

Keywords

Cite

@article{arxiv.1103.1437,
  title  = {A note on odd perfect numbers},
  author = {Jose Arnaldo B. Dris and Florian Luca},
  journal= {arXiv preprint arXiv:1103.1437},
  year   = {2016}
}

Comments

5 pages, to appear in The Fibonacci Quarterly

R2 v1 2026-06-21T17:36:23.526Z