20417404

素因数分解:

$2^2\times 7^1\times {\mathrm{331}}^1\times {\mathrm{2203}}^1$

素因数の和:2545

約数の個数: 24

約数和(自身を含む): 40976768

約数和(自身を除く): 20559364

約数列:

[1, 2, 4, 7, 14, 28, 331, 662, 1324, 2203, 2317, 4406, 4634, 8812, 9268, 15421, 30842, 61684, 729193, 1458386, 2916772, 5104351, 10208702, 20417404]

約数ペア:

[(1, 20417404), (2, 10208702), (4, 5104351), (7, 2916772), (14, 1458386), (28, 729193), (331, 61684), (662, 30842), (1324, 15421), (2203, 9268), (2317, 8812), (4406, 4634)]