%I A019422
%S A019422 1,217,510,642,710,742,782,795,862,935,1177,1207,1219,2667,3937,7590,
%T A019422 7854,8743,9481,9798,9858,10810,10934,11186,11235,11510,11594,11715,
%U A019422 11985,12082,12243,12903,12945,13022,13462,13587,13685,13822,14223,15085
%N A019422 Sum of divisors of n is a fourth power.
%D A019422 J.-M. De Koninck, Ces nombres qui nous fascinent, Entry 217, p. 62, Ellipses, 
               Paris 2008.
%Y A019422 Sequence in context: A145732 A038594 A020232 this_sequence A101826 A020251 
               A086026
%Y A019422 Adjacent sequences: A019419 A019420 A019421 this_sequence A019423 A019424 
               A019425
%K A019422 nonn
%O A019422 1,2
%A A019422 David W. Wilson (davidwwilson(AT)comcast.net)