scientific article; zbMATH DE number 1244302
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Publication:4226254
zbMATH Open0906.11004MaRDI QIDQ4226254
Publication date: 24 January 1999
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Related Items (3)
On the equation \(\sigma^*(n)=1+mn\) ⋮ An analog of perfect numbers involving the unitary totient function ⋮ Some analogues of a Lehmer problem on the totient function
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