21119696

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{101537}}^1$

素因数の和:101558

約数の個数: 20

約数和(自身を含む): 44067492

約数和(自身を除く): 22947796

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 101537, 203074, 406148, 812296, 1319981, 1624592, 2639962, 5279924, 10559848, 21119696]

約数ペア:

[(1, 21119696), (2, 10559848), (4, 5279924), (8, 2639962), (13, 1624592), (16, 1319981), (26, 812296), (52, 406148), (104, 203074), (208, 101537)]