20973460

素因数分解:

$2^2\times 5^1\times {\mathrm{677}}^1\times {\mathrm{1549}}^1$

素因数の和:2235

約数の個数: 24

約数和(自身を含む): 44137800

約数和(自身を除く): 23164340

約数列:

[1, 2, 4, 5, 10, 20, 677, 1354, 1549, 2708, 3098, 3385, 6196, 6770, 7745, 13540, 15490, 30980, 1048673, 2097346, 4194692, 5243365, 10486730, 20973460]

約数ペア:

[(1, 20973460), (2, 10486730), (4, 5243365), (5, 4194692), (10, 2097346), (20, 1048673), (677, 30980), (1354, 15490), (1549, 13540), (2708, 7745), (3098, 6770), (3385, 6196)]