21357684

素因数分解:

$2^2\times 3^2\times {\mathrm{571}}^1\times {\mathrm{1039}}^1$

素因数の和:1620

約数の個数: 36

約数和(自身を含む): 54134080

約数和(自身を除く): 32776396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 571, 1039, 1142, 1713, 2078, 2284, 3117, 3426, 4156, 5139, 6234, 6852, 9351, 10278, 12468, 18702, 20556, 37404, 593269, 1186538, 1779807, 2373076, 3559614, 5339421, 7119228, 10678842, 21357684]

約数ペア:

[(1, 21357684), (2, 10678842), (3, 7119228), (4, 5339421), (6, 3559614), (9, 2373076), (12, 1779807), (18, 1186538), (36, 593269), (571, 37404), (1039, 20556), (1142, 18702), (1713, 12468), (2078, 10278), (2284, 9351), (3117, 6852), (3426, 6234), (4156, 5139)]