21663628

素因数分解:

$2^2\times 7^1\times {\mathrm{457}}^1\times {\mathrm{1693}}^1$

素因数の和:2161

約数の個数: 24

約数和(自身を含む): 43447712

約数和(自身を除く): 21784084

約数列:

[1, 2, 4, 7, 14, 28, 457, 914, 1693, 1828, 3199, 3386, 6398, 6772, 11851, 12796, 23702, 47404, 773701, 1547402, 3094804, 5415907, 10831814, 21663628]

約数ペア:

[(1, 21663628), (2, 10831814), (4, 5415907), (7, 3094804), (14, 1547402), (28, 773701), (457, 47404), (914, 23702), (1693, 12796), (1828, 11851), (3199, 6772), (3386, 6398)]