12891151

素因数分解:

$7^1\times {\mathrm{13}}^2\times {\mathrm{17}}^1\times {\mathrm{641}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 16917984

約数和(自身を除く): 4026833

約数列:

[1, 7, 13, 17, 91, 119, 169, 221, 641, 1183, 1547, 2873, 4487, 8333, 10897, 20111, 58331, 76279, 108329, 141661, 758303, 991627, 1841593, 12891151]

約数ペア:

[(1, 12891151), (7, 1841593), (13, 991627), (17, 758303), (91, 141661), (119, 108329), (169, 76279), (221, 58331), (641, 20111), (1183, 10897), (1547, 8333), (2873, 4487)]