Problem

erdos:48

True ↔ {(n, m) | n.totient = (ArithmeticFunction.sigma 1) m}.Infinite

Open Current State

Declared status: proved
Formalization: formalized
Subjects: number theory
OEIS: N/A
Sources: source:erdos-problemssource:formal-conjectures
Statement: www.erdosproblems.com

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