19990456

素因数分解:

$2^3\times {\mathrm{677}}^1\times {\mathrm{3691}}^1$

素因数の和:4374

約数の個数: 16

約数和(自身を含む): 37547640

約数和(自身を除く): 17557184

約数列:

[1, 2, 4, 8, 677, 1354, 2708, 3691, 5416, 7382, 14764, 29528, 2498807, 4997614, 9995228, 19990456]

約数ペア:

[(1, 19990456), (2, 9995228), (4, 4997614), (8, 2498807), (677, 29528), (1354, 14764), (2708, 7382), (3691, 5416)]