21662180

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^1\times {\mathrm{34939}}^1$

素因数の和:34979

約数の個数: 24

約数和(自身を含む): 46959360

約数和(自身を除く): 25297180

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 34939, 69878, 139756, 174695, 349390, 698780, 1083109, 2166218, 4332436, 5415545, 10831090, 21662180]

約数ペア:

[(1, 21662180), (2, 10831090), (4, 5415545), (5, 4332436), (10, 2166218), (20, 1083109), (31, 698780), (62, 349390), (124, 174695), (155, 139756), (310, 69878), (620, 34939)]