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A326185 a(n) = sigma(n) - A057521(n) - n.

%I A326185 #8 Jul 12 2019 07:21:19
%S A326185 -1,0,0,-1,0,5,0,-1,-5,7,0,12,0,9,8,-1,0,12,0,18,10,13,0,28,-19,15,
%T A326185 -14,24,0,41,0,-1,14,19,12,19,0,21,16,42,0,53,0,36,24,25,0,60,-41,18,
%U A326185 20,42,0,39,16,56,22,31,0,104,0,33,32,-1,18,77,0,54,26,73,0,51,0,39,24,60,18,89,0,90,-41,43,0,136,22,45,32,84,0
%N A326185 a(n) = sigma(n) - A057521(n) - n.
%H A326185 Antti Karttunen, <a href="/A326185/b326185.txt">Table of n, a(n) for n = 1..16384</a>
%H A326185 Antti Karttunen, <a href="/A326185/a326185.txt">Data supplement: n, a(n) computed for n = 1..65537</a>
%F A326185 a(n) = A326184(n) - n = sigma(n) - A057521(n) - n.
%F A326185 a(n) = A001065(n) - A057521(n).
%o A326185 (PARI)
%o A326185 A057521(n) = { my(f=factor(n)); prod(i=1, #f~, if(f[i, 2]>1, f[i, 1]^f[i, 2], 1)); }; \\ From A057521.
%o A326185 A326185(n) = ((sigma(n)-A057521(n))-n);
%Y A326185 Cf. A000203, A001065, A057521, A326184, A326186.
%Y A326185 Cf. also A326188.
%K A326185 sign
%O A326185 1,6
%A A326185 _Antti Karttunen_, Jul 11 2019