21539718

素因数分解:

$2^1\times 3^2\times {\mathrm{139}}^1\times {\mathrm{8609}}^1$

素因数の和:8756

約数の個数: 24

約数和(自身を含む): 47010600

約数和(自身を除く): 25470882

約数列:

[1, 2, 3, 6, 9, 18, 139, 278, 417, 834, 1251, 2502, 8609, 17218, 25827, 51654, 77481, 154962, 1196651, 2393302, 3589953, 7179906, 10769859, 21539718]

約数ペア:

[(1, 21539718), (2, 10769859), (3, 7179906), (6, 3589953), (9, 2393302), (18, 1196651), (139, 154962), (278, 77481), (417, 51654), (834, 25827), (1251, 17218), (2502, 8609)]