21821150

素因数分解:

$2^1\times 5^2\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{569}}^1$

素因数の和:653

約数の個数: 48

約数和(自身を含む): 44528400

約数和(自身を除く): 22707250

約数列:

[1, 2, 5, 10, 13, 25, 26, 50, 59, 65, 118, 130, 295, 325, 569, 590, 650, 767, 1138, 1475, 1534, 2845, 2950, 3835, 5690, 7397, 7670, 14225, 14794, 19175, 28450, 33571, 36985, 38350, 67142, 73970, 167855, 184925, 335710, 369850, 436423, 839275, 872846, 1678550, 2182115, 4364230, 10910575, 21821150]

約数ペア:

[(1, 21821150), (2, 10910575), (5, 4364230), (10, 2182115), (13, 1678550), (25, 872846), (26, 839275), (50, 436423), (59, 369850), (65, 335710), (118, 184925), (130, 167855), (295, 73970), (325, 67142), (569, 38350), (590, 36985), (650, 33571), (767, 28450), (1138, 19175), (1475, 14794), (1534, 14225), (2845, 7670), (2950, 7397), (3835, 5690)]