20890504

素因数分解:

$2^3\times {\mathrm{109}}^1\times {\mathrm{23957}}^1$

素因数の和:24072

約数の個数: 16

約数和(自身を含む): 39530700

約数和(自身を除く): 18640196

約数列:

[1, 2, 4, 8, 109, 218, 436, 872, 23957, 47914, 95828, 191656, 2611313, 5222626, 10445252, 20890504]

約数ペア:

[(1, 20890504), (2, 10445252), (4, 5222626), (8, 2611313), (109, 191656), (218, 95828), (436, 47914), (872, 23957)]