21187290

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{167}}^1\times {\mathrm{4229}}^1$

素因数の和:4406

約数の個数: 32

約数和(自身を含む): 51166080

約数和(自身を除く): 29978790

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 167, 334, 501, 835, 1002, 1670, 2505, 4229, 5010, 8458, 12687, 21145, 25374, 42290, 63435, 126870, 706243, 1412486, 2118729, 3531215, 4237458, 7062430, 10593645, 21187290]

約数ペア:

[(1, 21187290), (2, 10593645), (3, 7062430), (5, 4237458), (6, 3531215), (10, 2118729), (15, 1412486), (30, 706243), (167, 126870), (334, 63435), (501, 42290), (835, 25374), (1002, 21145), (1670, 12687), (2505, 8458), (4229, 5010)]