%I #6 May 13 2024 12:21:34
%S 2,4,4,6,4,8,4,8,6,8,3,12,4,8,8,10,4,12,4,12,8,6,4,16,6,8,8,12,4,16,4,
%T 12,6,8,8,18,4,8,8,16,4,16,4,9,12,8,4,20,6,12,8,12,4,16,6,16,8,8,4,24,
%U 4,8,12,14,8,12,4,12,8,16,4,24,4,8,12,12,6,16
%N a(n) = tau(11*n) = A000005(11*n).
%H Vaclav Kotesovec, <a href="/A372791/a372791.jpg">Graph - the asymptotic ratio (100000 terms)</a>
%F Sum_{k=1..n} a(k) ~ (21*n*(log(n) + 2*gamma - 1) + n*log(11)) / 11, where gamma is the Euler-Mascheroni constant A001620.
%t Table[DivisorSigma[0, 11*n], {n, 1, 150}]
%Y Cf. A000005, A099777, A372713, A372784, A372785, A372786, A372787, A372788, A372789, A372790, A372792.
%K nonn
%O 1,1
%A _Vaclav Kotesovec_, May 13 2024