On common values of φ(n) and σ(m), II
classification
🧮 math.NT
keywords
sigmacommondivisorseulerfunctionintegersphi-valuespositive
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Let phi(n) be Euler's totient function and let sigma(n) be the sum of the positive divisors of n. We show that most phi-values (integers in the range of phi) are not sigma-values and vice versa.
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