21965656

素因数分解:

$2^3\times {\mathrm{419}}^1\times {\mathrm{6553}}^1$

素因数の和:6978

約数の個数: 16

約数和(自身を含む): 41290200

約数和(自身を除く): 19324544

約数列:

[1, 2, 4, 8, 419, 838, 1676, 3352, 6553, 13106, 26212, 52424, 2745707, 5491414, 10982828, 21965656]

約数ペア:

[(1, 21965656), (2, 10982828), (4, 5491414), (8, 2745707), (419, 52424), (838, 26212), (1676, 13106), (3352, 6553)]