A326053 - OEIS

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A326053

Sum of all other divisors of n except the largest square divisor: a(n) = sigma(n) - A008833(n).

6

0, 2, 3, 3, 5, 11, 7, 11, 4, 17, 11, 24, 13, 23, 23, 15, 17, 30, 19, 38, 31, 35, 23, 56, 6, 41, 31, 52, 29, 71, 31, 47, 47, 53, 47, 55, 37, 59, 55, 86, 41, 95, 43, 80, 69, 71, 47, 108, 8, 68, 71, 94, 53, 111, 71, 116, 79, 89, 59, 164, 61, 95, 95, 63, 83, 143, 67, 122, 95, 143, 71, 159, 73, 113, 99, 136, 95, 167, 79, 170, 40, 125, 83

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OFFSET

1,2

LINKS

Antti Karttunen, Table of n, a(n) for n = 1..20000

Index entries for sequences related to sigma(n)

FORMULA

a(n) = A000203(n) - A008833(n).

a(n) = n + A326054(n).

a(n) >= A285309(n).

PROG

(PARI)

A008833(n) = (n/core(n));

A326053(n) = (sigma(n)-A008833(n));

CROSSREFS

Cf. A000203, A008833, A285309, A326054, A326055.

Sequence in context: A049855 A286868 A326184 * A296083 A294285 A363786

Adjacent sequences: A326050 A326051 A326052 * A326054 A326055 A326056

KEYWORD

nonn

AUTHOR

Antti Karttunen, Jun 05 2019

STATUS

approved