21195130

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{4481}}^1$

素因数の和:4542

約数の個数: 32

約数和(自身を含む): 42596928

約数和(自身を除く): 21401798

約数列:

[1, 2, 5, 10, 11, 22, 43, 55, 86, 110, 215, 430, 473, 946, 2365, 4481, 4730, 8962, 22405, 44810, 49291, 98582, 192683, 246455, 385366, 492910, 963415, 1926830, 2119513, 4239026, 10597565, 21195130]

約数ペア:

[(1, 21195130), (2, 10597565), (5, 4239026), (10, 2119513), (11, 1926830), (22, 963415), (43, 492910), (55, 385366), (86, 246455), (110, 192683), (215, 98582), (430, 49291), (473, 44810), (946, 22405), (2365, 8962), (4481, 4730)]