20985908

素因数分解:

$2^2\times {\mathrm{29}}^1\times {\mathrm{113}}^1\times {\mathrm{1601}}^1$

素因数の和:1747

約数の個数: 24

約数和(自身を含む): 38351880

約数和(自身を除く): 17365972

約数列:

[1, 2, 4, 29, 58, 113, 116, 226, 452, 1601, 3202, 3277, 6404, 6554, 13108, 46429, 92858, 180913, 185716, 361826, 723652, 5246477, 10492954, 20985908]

約数ペア:

[(1, 20985908), (2, 10492954), (4, 5246477), (29, 723652), (58, 361826), (113, 185716), (116, 180913), (226, 92858), (452, 46429), (1601, 13108), (3202, 6554), (3277, 6404)]