21283710

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2357}}^1$

素因数の和:2417

約数の個数: 64

約数和(自身を含む): 59761152

約数和(自身を除く): 38477442

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 35, 42, 43, 70, 86, 105, 129, 210, 215, 258, 301, 430, 602, 645, 903, 1290, 1505, 1806, 2357, 3010, 4515, 4714, 7071, 9030, 11785, 14142, 16499, 23570, 32998, 35355, 49497, 70710, 82495, 98994, 101351, 164990, 202702, 247485, 304053, 494970, 506755, 608106, 709457, 1013510, 1418914, 1520265, 2128371, 3040530, 3547285, 4256742, 7094570, 10641855, 21283710]

約数ペア:

[(1, 21283710), (2, 10641855), (3, 7094570), (5, 4256742), (6, 3547285), (7, 3040530), (10, 2128371), (14, 1520265), (15, 1418914), (21, 1013510), (30, 709457), (35, 608106), (42, 506755), (43, 494970), (70, 304053), (86, 247485), (105, 202702), (129, 164990), (210, 101351), (215, 98994), (258, 82495), (301, 70710), (430, 49497), (602, 35355), (645, 32998), (903, 23570), (1290, 16499), (1505, 14142), (1806, 11785), (2357, 9030), (3010, 7071), (4515, 4714)]