English

The sum of the unitary divisor function

Number Theory 2015-07-02 v3

Abstract

This article establishes a new upper bound on the function σ(n)\sigma^{*}(n), the sum of all coprime divisors of nn. The article concludes with two questions concerning this function.

Keywords

Cite

@article{arxiv.1312.4615,
  title  = {The sum of the unitary divisor function},
  author = {Tim Trudgian},
  journal= {arXiv preprint arXiv:1312.4615},
  year   = {2015}
}

Comments

6 pages, to appear in Publ. Inst. Math. (Beograd) (N.S.)

R2 v1 2026-06-22T02:29:03.071Z