Permanent problem IDPPL 037
Number theory
A unitary divisor of n is d∣ n such that (d,n/d)=1. A number n≥ 1 is a unitary perfect number if it is the sum of its unitary divisors (aside from n itself). Are there only finite many unitary perfect numbers?
A unitary divisor of n is d∣ n such that (d,n/d)=1. A number n≥ 1 is a unitary perfect number if it is the sum of its unitary divisors (aside from n itself). Are there only finite many unitary perfect numbers?
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