Formula:8687

Digital Library of Mathematical Functions ID 27.2.E7

${\displaystyle{\displaystyle\phi\left(n\right)=\phi_{0}\left(n\right).}}$

Symbols List

• ${\displaystyle{\displaystyle\phi_{\NVar{k}}\left(\NVar{n}\right)}}$: sum of powers of integers relatively prime to $$n$$
• ${\displaystyle{\displaystyle n}}$: positive integer
 

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