21116940

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{27073}}^1$

素因数の和:27098

約数の個数: 48

約数和(自身を含む): 63678048

約数和(自身を除く): 42561108

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 13, 15, 20, 26, 30, 39, 52, 60, 65, 78, 130, 156, 195, 260, 390, 780, 27073, 54146, 81219, 108292, 135365, 162438, 270730, 324876, 351949, 406095, 541460, 703898, 812190, 1055847, 1407796, 1624380, 1759745, 2111694, 3519490, 4223388, 5279235, 7038980, 10558470, 21116940]

約数ペア:

[(1, 21116940), (2, 10558470), (3, 7038980), (4, 5279235), (5, 4223388), (6, 3519490), (10, 2111694), (12, 1759745), (13, 1624380), (15, 1407796), (20, 1055847), (26, 812190), (30, 703898), (39, 541460), (52, 406095), (60, 351949), (65, 324876), (78, 270730), (130, 162438), (156, 135365), (195, 108292), (260, 81219), (390, 54146), (780, 27073)]