A problem of Ramanujan, Erdos and Katai on the iterated divisor function
Number Theory
2014-03-24 v1
Abstract
We determine asymptotically the maximal order of log d(d(n)), where d(n) is the number of positive divisors of n. This solves a problem first put forth by Ramanujan in 1915.
Cite
@article{arxiv.1108.1815,
title = {A problem of Ramanujan, Erdos and Katai on the iterated divisor function},
author = {Yvonne Buttkewitz and Christian Elsholtz and Kevin Ford and Jan-Christoph Schlage-Puchta},
journal= {arXiv preprint arXiv:1108.1815},
year = {2014}
}
Comments
8 pages