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arXiv 1012.2337math.NT
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关于$k$ -Lehmer数

On $k$-Lehmer numbers

Antonio M. Oller-Marcén, José María Grau

摘要:

Lehmer的totient问题包括确定正整数集合$n$使得$φ(n)|n-1$其中$φ$是欧拉totient函数。本文引入了$k$ -Lehmer数的概念。$k$ -Lehmer数是一个合数,使得$φ(n)|(n-1)^k$ .利用$k$ -Lehmer数与Carmichael数之间的关系,给出了Carmichael数的一个新的刻画,并给出了与Carmichael数的分布有关的一些定理,这些定理也是$k$ -Lehmer数.

英文摘要:

Lehmer's totient problem consists of determining the set of positive integers $n$ such that $φ(n)|n-1$ where $φ$ is Euler's totient function. In this paper we introduce the concept of $k$-Lehmer number. A $k$-Lehmer number is a composite number such that $φ(n)|(n-1)^k$. The relation between $k$-Lehmer numbers and Carmichael numbers leads to a new characterization of Carmichael numbers and to some conjectures related to the distribution of Carmichael numbers which are also $k$-Lehmer numbers.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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