Two explicit divisor sums

نویسندگان

چکیده

We give explicit bounds on sums of $d(n)^2$ and $d_4(n)$, where $d(n)$ is the number divisors $n$ $d_4(n)$ ways writing as a product four numbers. In doing so we make slight improvement upper bound for class numbers quartic fields.

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ژورنال

عنوان ژورنال: Ramanujan Journal

سال: 2021

ISSN: ['1572-9303', '1382-4090']

DOI: https://doi.org/10.1007/s11139-020-00333-3