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%I #13 Jul 16 2021 20:02:01
%S 1056331752,1061905992,1823140011,3564162938,3667843058,3722593056,
%T 3754042656,5732483592,5836959090,6021989960,6260277320,8433473570,
%U 8799421778,8845856138,9976235103,10655560968,12961358020,13736556801,14606220127,19398086442,24066143955,24746856018,28520952292
%N Numbers k such that sigma(k) is the fourth power of the sum of the prime divisors of k.
%H Robert Gerbicz, <a href="/A221262/b221262.txt">Table of n, a(n) for n = 1..10000</a>
%e 1056331752 = 2^3*3*7*19*59*71*79 and sigma(1056331752) = (2+3+7+19+59+71+79)^4.
%Y Cf. A187771 sigma(k)=sopf(k)^3, A221263 sigma(k)=sopf(k)^5.
%K nonn
%O 1,1
%A _Giovanni Resta_, Jan 07 2013
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