21030710

素因数分解:

$2^1\times 5^1\times {\mathrm{31}}^1\times {\mathrm{179}}^1\times {\mathrm{379}}^1$

素因数の和:596

約数の個数: 32

約数和(自身を含む): 39398400

約数和(自身を除く): 18367690

約数列:

[1, 2, 5, 10, 31, 62, 155, 179, 310, 358, 379, 758, 895, 1790, 1895, 3790, 5549, 11098, 11749, 23498, 27745, 55490, 58745, 67841, 117490, 135682, 339205, 678410, 2103071, 4206142, 10515355, 21030710]

約数ペア:

[(1, 21030710), (2, 10515355), (5, 4206142), (10, 2103071), (31, 678410), (62, 339205), (155, 135682), (179, 117490), (310, 67841), (358, 58745), (379, 55490), (758, 27745), (895, 23498), (1790, 11749), (1895, 11098), (3790, 5549)]