Parama Dutta, Manjil P. Saikia
Published 2019-06-18Version 1
For a positive integer $n$, if $\sigma(n)$ denotes the sum of the positive divisors of $n$, then $n$ is called a deficient perfect number if $\sigma(n)=2n-d$ for some positive divisor $d$ of $n$. In this paper, we prove some results about odd deficient perfect numbers with four distinct prime factors.
Comments: 11 pages, preprint version (journal version may differ). To appear in Asian-European Journal of Mathematics
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