Does Sage has an inverse totient function command?

number_theory

asked 2015-12-19 21:36:59 +0200

demongolem

11 ●1 ●1 ●3

updated 2017-01-08 12:04:37 +0200

FrédéricC

5125 ●3 ●43 ●111

I know about euler_phi(n), but is there a command where I can a get a list or some sort of other collection for all those values where n = euler_phi(f(n))?

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answered 2015-12-19 23:54:27 +0200

kcrisman
12222 ●41 ●135 ●254

This seems to be rather nontrivial though I guess something like one of the many suggestions there could be implemented... at first I thought you mean the Dirichlet inverse but I guess not.

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Asked: 2015-12-19 21:36:59 +0200

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Last updated: Dec 19 '15

Does Sage has an inverse totient function command? edit

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