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- W2112101384 abstract "Abstract For a positive integer $def xmlpi #1{}def mathsfbi #1{boldsymbol {mathsf {#1}}}let le =leqslant let leq =leqslant let ge =geqslant let geq =geqslant def Pr {mathit {Pr}}def Fr {mathit {Fr}}def Rey {mathit {Re}}n$ , let $sigma (n)$ denote the sum of the positive divisors of $n$ . Let $d$ be a proper divisor of $n$ . We call $n$ a deficient-perfect number if $sigma (n) = 2n - d$ . In this paper, we show that there are no odd deficient-perfect numbers with three distinct prime divisors." @default.
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- W2112101384 date "2014-05-23" @default.
- W2112101384 modified "2023-09-23" @default.
- W2112101384 title "ON DEFICIENT-PERFECT NUMBERS" @default.
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