New notes on the equation \(d(n)=d(\varphi(n))\) and the inequality \(d(n)>d(\varphi(n))\)

DOI10.1515/MS-2024-0081MaRDI QIDQ6634062

Alain S. Togbé, Rafael Jakimczuk, Djamel Bellaouar

Publication date: 6 November 2024

Published in: Mathematica Slovaca (Search for Journal in Brave)

zbMATH Keywords

divisor functionprime numbersEuler's functionDiophantine equations

Mathematics Subject Classification ID

Arithmetic functions; related numbers; inversion formulas (11A25) Diophantine equations in many variables (11D72) Primes (11A41)

Cites Work

• Large Sophie Germain primes
• Elementary Methods in Number Theory
• On a sequence formed by iterating a divisor operator
• Notes on the equation \(d(n)=D(\varphi(n))\) and related inequalities
• Title not available (Why is that?)
• Title not available (Why is that?)

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