21566768

素因数分解:

$2^4\times {\mathrm{419}}^1\times {\mathrm{3217}}^1$

素因数の和:3644

約数の個数: 20

約数和(自身を含む): 41898360

約数和(自身を除く): 20331592

約数列:

[1, 2, 4, 8, 16, 419, 838, 1676, 3217, 3352, 6434, 6704, 12868, 25736, 51472, 1347923, 2695846, 5391692, 10783384, 21566768]

約数ペア:

[(1, 21566768), (2, 10783384), (4, 5391692), (8, 2695846), (16, 1347923), (419, 51472), (838, 25736), (1676, 12868), (3217, 6704), (3352, 6434)]