21493668

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{255877}}^1$

素因数の和:255891

約数の個数: 24

約数和(自身を含む): 57316672

約数和(自身を除く): 35823004

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 255877, 511754, 767631, 1023508, 1535262, 1791139, 3070524, 3582278, 5373417, 7164556, 10746834, 21493668]

約数ペア:

[(1, 21493668), (2, 10746834), (3, 7164556), (4, 5373417), (6, 3582278), (7, 3070524), (12, 1791139), (14, 1535262), (21, 1023508), (28, 767631), (42, 511754), (84, 255877)]