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- W2362200580 abstract "There has been a lot of investigations on arithmetic functions σ and φ,where φ(n) is Euler totient function and σ(n) is the sum of divisors of n.Some researches on the properties of Arithmetic functions were summarized such as the Lehmer conjecture and results of multiply number.It was investigated positive integers n when φ(n) be a divisor of σ(n).It was worthy of noting that φ(n)|σ(n) had solutions n=2α(2α+2-1),which had the similar form as the even perfect numbers 2n-1(2n-1)(where 2α+2-1 and 2n-1 were prime,α∈N,n∈N)." @default.
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- W2362200580 date "2007-01-01" @default.
- W2362200580 modified "2023-09-24" @default.
- W2362200580 title "On a divisibility relation of σ(n) and φ(n)" @default.
- W2362200580 hasPublicationYear "2007" @default.
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