21173740

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{151241}}^1$

素因数の和:151257

約数の個数: 24

約数和(自身を含む): 50817312

約数和(自身を除く): 29643572

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 70, 140, 151241, 302482, 604964, 756205, 1058687, 1512410, 2117374, 3024820, 4234748, 5293435, 10586870, 21173740]

約数ペア:

[(1, 21173740), (2, 10586870), (4, 5293435), (5, 4234748), (7, 3024820), (10, 2117374), (14, 1512410), (20, 1058687), (28, 756205), (35, 604964), (70, 302482), (140, 151241)]