21670620

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{71}}^1\times {\mathrm{5087}}^1$

素因数の和:5170

約数の個数: 48

約数和(自身を含む): 61544448

約数和(自身を除く): 39873828

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 71, 142, 213, 284, 355, 426, 710, 852, 1065, 1420, 2130, 4260, 5087, 10174, 15261, 20348, 25435, 30522, 50870, 61044, 76305, 101740, 152610, 305220, 361177, 722354, 1083531, 1444708, 1805885, 2167062, 3611770, 4334124, 5417655, 7223540, 10835310, 21670620]

約数ペア:

[(1, 21670620), (2, 10835310), (3, 7223540), (4, 5417655), (5, 4334124), (6, 3611770), (10, 2167062), (12, 1805885), (15, 1444708), (20, 1083531), (30, 722354), (60, 361177), (71, 305220), (142, 152610), (213, 101740), (284, 76305), (355, 61044), (426, 50870), (710, 30522), (852, 25435), (1065, 20348), (1420, 15261), (2130, 10174), (4260, 5087)]