21410216

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{109}}^1\times {\mathrm{571}}^1$

素因数の和:729

約数の個数: 32

約数和(自身を含む): 41527200

約数和(自身を除く): 20116984

約数列:

[1, 2, 4, 8, 43, 86, 109, 172, 218, 344, 436, 571, 872, 1142, 2284, 4568, 4687, 9374, 18748, 24553, 37496, 49106, 62239, 98212, 124478, 196424, 248956, 497912, 2676277, 5352554, 10705108, 21410216]

約数ペア:

[(1, 21410216), (2, 10705108), (4, 5352554), (8, 2676277), (43, 497912), (86, 248956), (109, 196424), (172, 124478), (218, 98212), (344, 62239), (436, 49106), (571, 37496), (872, 24553), (1142, 18748), (2284, 9374), (4568, 4687)]