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Abstract <p> In this paper, we study the composite numbers with <InlineEquation ID="IEq2"> <EquationSource Format="TEX">\((n+1)\mid \sigma(n)\)</EquationSource> </InlineEquation>. We prove several results regarding these numbers and put forward some questions. </p>

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On Composite Numbers with \((n+1)\mid \sigma(n)\)

  • 期刊论文

  • 发表日期：

    2025年8月1日

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  • K. Gu

摘要

Abstract

In this paper, we study the composite numbers with \((n+1)\mid \sigma(n)\) . We prove several results regarding these numbers and put forward some questions.