On the Congruence σ(n) ≡ 1(mod n), II

被引:1
|
作者
Meng LI [1 ]
Min TANG [1 ]
机构
[1] School of Mathematics and Computer Science,Anhui Normal University
基金
中国国家自然科学基金;
关键词
quasiperfect number; quasi-multiperfect number;
D O I
暂无
中图分类号
O156 [数论];
学科分类号
摘要
Let k ≥ 2 be an integer, and let σ(n) denote the sum of the positive divisors of an integer n. We call n a quasi-multiperfect number if σ(n) = kn + 1. In this paper, we give some necessary properties of quasi-multiperfect numbers with four different prime divisors.
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页码:155 / 160
页数:6
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