21113430

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{43}}^1\times {\mathrm{1259}}^1$

素因数の和:1325

約数の個数: 64

約数和(自身を含む): 55883520

約数和(自身を除く): 34770090

約数列:

[1, 2, 3, 5, 6, 10, 13, 15, 26, 30, 39, 43, 65, 78, 86, 129, 130, 195, 215, 258, 390, 430, 559, 645, 1118, 1259, 1290, 1677, 2518, 2795, 3354, 3777, 5590, 6295, 7554, 8385, 12590, 16367, 16770, 18885, 32734, 37770, 49101, 54137, 81835, 98202, 108274, 162411, 163670, 245505, 270685, 324822, 491010, 541370, 703781, 812055, 1407562, 1624110, 2111343, 3518905, 4222686, 7037810, 10556715, 21113430]

約数ペア:

[(1, 21113430), (2, 10556715), (3, 7037810), (5, 4222686), (6, 3518905), (10, 2111343), (13, 1624110), (15, 1407562), (26, 812055), (30, 703781), (39, 541370), (43, 491010), (65, 324822), (78, 270685), (86, 245505), (129, 163670), (130, 162411), (195, 108274), (215, 98202), (258, 81835), (390, 54137), (430, 49101), (559, 37770), (645, 32734), (1118, 18885), (1259, 16770), (1290, 16367), (1677, 12590), (2518, 8385), (2795, 7554), (3354, 6295), (3777, 5590)]