---
tag: 037F589D1D
kind: concept
name: Dirichlet convolution
msc: [11A25]
sources:
  - url: https://en.wikipedia.org/wiki/Dirichlet_convolution
    locator: lead section
same_as:
  wikidata: Q6453184
  wikipedia: Dirichlet convolution
---

## Summary

The Dirichlet convolution is a product of two arithmetic functions, given by a sum over the divisors of $n$.
The [[definition of the Dirichlet convolution|0KH1N66QWW]] gives the precise form.