21189621

素因数分解:

$3^1\times {\mathrm{47}}^1\times {\mathrm{67}}^1\times {\mathrm{2243}}^1$

素因数の和:2360

約数の個数: 16

約数和(自身を含む): 29297664

約数和(自身を除く): 8108043

約数列:

[1, 3, 47, 67, 141, 201, 2243, 3149, 6729, 9447, 105421, 150281, 316263, 450843, 7063207, 21189621]

約数ペア:

[(1, 21189621), (3, 7063207), (47, 450843), (67, 316263), (141, 150281), (201, 105421), (2243, 9447), (3149, 6729)]