%I #7 Feb 24 2021 22:51:10
%S 1,2,12,48,5832
%N phi(n) is equal to the product of the dual prime-power components of n.
%e phi(5832)=1944, 5832=2^3*3^6, (3^2)*(6^3)=1944.
%Y Cf. A000010, A008477.
%K nonn
%O 1,2
%A _Olivier GĂ©rard_
%E No others < 7*10^7. - _Naohiro Nomoto_, Jun 23 2001