81657303

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{113}}^1\times {\mathrm{2647}}^1$

素因数の和:2783

約数の個数: 32

約数和(自身を含む): 135238656

約数和(自身を除く): 53581353

約数列:

[1, 3, 7, 13, 21, 39, 91, 113, 273, 339, 791, 1469, 2373, 2647, 4407, 7941, 10283, 18529, 30849, 34411, 55587, 103233, 240877, 299111, 722631, 897333, 2093777, 3888443, 6281331, 11665329, 27219101, 81657303]

約数ペア:

[(1, 81657303), (3, 27219101), (7, 11665329), (13, 6281331), (21, 3888443), (39, 2093777), (91, 897333), (113, 722631), (273, 299111), (339, 240877), (791, 103233), (1469, 55587), (2373, 34411), (2647, 30849), (4407, 18529), (7941, 10283)]