21976980

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{53}}^1\times {\mathrm{6911}}^1$

素因数の和:6976

約数の個数: 48

約数和(自身を含む): 62705664

約数和(自身を除く): 40728684

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 53, 60, 106, 159, 212, 265, 318, 530, 636, 795, 1060, 1590, 3180, 6911, 13822, 20733, 27644, 34555, 41466, 69110, 82932, 103665, 138220, 207330, 366283, 414660, 732566, 1098849, 1465132, 1831415, 2197698, 3662830, 4395396, 5494245, 7325660, 10988490, 21976980]

約数ペア:

[(1, 21976980), (2, 10988490), (3, 7325660), (4, 5494245), (5, 4395396), (6, 3662830), (10, 2197698), (12, 1831415), (15, 1465132), (20, 1098849), (30, 732566), (53, 414660), (60, 366283), (106, 207330), (159, 138220), (212, 103665), (265, 82932), (318, 69110), (530, 41466), (636, 34555), (795, 27644), (1060, 20733), (1590, 13822), (3180, 6911)]