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%I #9 May 05 2018 06:28:29
%S 2,8,12,16,67,924122,1067239
%N Numbers k such that the average of all strong divisors of all positive integers <= k is an integer.
%C We say d is a strong divisor of k iff d is a divisor of k and d > 1.
%C Numbers k such that A002541(k) | A024917(k).
%C a(8) > 10^12. - _Giovanni Resta_, May 05 2018
%H <a href="/index/Di#divisors">Index entries for sequences related to divisors of numbers</a>
%Y Cf. A024917, A027750, A032741, A039653, A056550, A226647, A284288, A284755, A303480, A303482, A303659.
%K nonn,more
%O 1,1
%A _Ilya Gutkovskiy_, May 02 2018
%E a(3)-a(7) corrected by _Daniel Suteu_, May 03 2018
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