W.B.Vasantha Kandasamy;

• 1:Department of Mathmatics Indian Institute of Technology
• 2:Madras-600 036
• 3:India.

摘要(Abstract)：

<正> A number is called perfect if it is equal to the sum of its divisors. Here we count l as adivisor, but do not count the number itself. For a number n, σ(n) denotes the sum of its di-visors.

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作者(Authors): W.B.Vasantha Kandasamy;

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