Average order of an arithmetic function: Difference between revisions

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Zvishem (talk | contribs)
Zvishem (talk | contribs)
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which resembles closely the analogous result for the integers:
 
\sum_{n\le x}\sigma_{k}(n)=\frac{\zeta(k+1)}{k+1}x^{k+1}+O(x^{k})
 
====Number of divisors====