Author:
DAI LI-XIA,PAN HAO,TANG CUI-E
Abstract
AbstractFor $k\geq 2$ and $r\geq 1$, we prove that the number of odd $k$-perfect numbers with $r$ distinct prime factors is at most $4^{r^2}(k-1)^{2r^2+3}$.
Publisher
Cambridge University Press (CUP)
Cited by
2 articles.
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