On the Congruence σ(n)≡1(mod n) |
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作者姓名: | Min TANG Meng LI |
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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 them.
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