21669416

素因数分解:

$2^3\times {\mathrm{677}}^1\times {\mathrm{4001}}^1$

素因数の和:4684

約数の個数: 16

約数和(自身を含む): 40700340

約数和(自身を除く): 19030924

約数列:

[1, 2, 4, 8, 677, 1354, 2708, 4001, 5416, 8002, 16004, 32008, 2708677, 5417354, 10834708, 21669416]

約数ペア:

[(1, 21669416), (2, 10834708), (4, 5417354), (8, 2708677), (677, 32008), (1354, 16004), (2708, 8002), (4001, 5416)]