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 A295314 a(n) = sigma(n) / gcd(sigma(n), phi(sigma(n))). 4
 1, 3, 2, 7, 3, 3, 2, 15, 13, 3, 3, 7, 7, 3, 3, 31, 3, 13, 5, 7, 2, 3, 3, 15, 31, 7, 5, 7, 15, 3, 2, 7, 3, 3, 3, 91, 19, 15, 7, 15, 7, 3, 11, 7, 13, 3, 3, 31, 19, 31, 3, 7, 3, 15, 3, 15, 5, 15, 15, 7, 31, 3, 13, 127, 7, 3, 17, 7, 3, 3, 3, 65, 37, 19, 31, 35, 3, 7, 5, 31, 11, 7, 7, 7, 3, 33, 15, 15, 15, 13, 7, 7, 2, 3 (list; graph; refs; listen; history; text; internal format)
 OFFSET 1,2 LINKS Antti Karttunen, Table of n, a(n) for n = 1..16384 FORMULA a(n) = A000203(n) / A295313(n) = A109395(A000203(n)). PROG (PARI) a(n) = my(sn = sigma(n)); sn/gcd(sn, eulerphi(sn)); \\ Michel Marcus, Nov 23 2017 CROSSREFS Cf. A000010, A000203, A009195, A109395, A295313, A295315. Sequence in context: A182885 A182891 A071190 * A057020 A257322 A276466 Adjacent sequences:  A295311 A295312 A295313 * A295315 A295316 A295317 KEYWORD nonn AUTHOR Antti Karttunen, Nov 22 2017 STATUS approved

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Last modified August 11 15:12 EDT 2020. Contains 336428 sequences. (Running on oeis4.)