21303016

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2423}}^1$

素因数の和:2593

約数の個数: 32

約数和(自身を含む): 45959040

約数和(自身を除く): 24656024

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 2423, 4396, 4846, 8792, 9692, 16961, 19384, 33922, 67844, 135688, 380411, 760822, 1521644, 2662877, 3043288, 5325754, 10651508, 21303016]

約数ペア:

[(1, 21303016), (2, 10651508), (4, 5325754), (7, 3043288), (8, 2662877), (14, 1521644), (28, 760822), (56, 380411), (157, 135688), (314, 67844), (628, 33922), (1099, 19384), (1256, 16961), (2198, 9692), (2423, 8792), (4396, 4846)]