21964808

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{25189}}^1$

素因数の和:25304

約数の個数: 16

約数和(自身を含む): 41563500

約数和(自身を除く): 19598692

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 25189, 50378, 100756, 201512, 2745601, 5491202, 10982404, 21964808]

約数ペア:

[(1, 21964808), (2, 10982404), (4, 5491202), (8, 2745601), (109, 201512), (218, 100756), (436, 50378), (872, 25189)]