21493740

素因数分解:

$2^2\times 3^1\times 5^1\times {\mathrm{358229}}^1$

素因数の和:358241

約数の個数: 24

約数和(自身を含む): 60182640

約数和(自身を除く): 38688900

約数列:

[1, 2, 3, 4, 5, 6, 10, 12, 15, 20, 30, 60, 358229, 716458, 1074687, 1432916, 1791145, 2149374, 3582290, 4298748, 5373435, 7164580, 10746870, 21493740]

約数ペア:

[(1, 21493740), (2, 10746870), (3, 7164580), (4, 5373435), (5, 4298748), (6, 3582290), (10, 2149374), (12, 1791145), (15, 1432916), (20, 1074687), (30, 716458), (60, 358229)]