19720888

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{224101}}^1$

素因数の和:224118

約数の個数: 16

約数和(自身を含む): 40338360

約数和(自身を除く): 20617472

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 224101, 448202, 896404, 1792808, 2465111, 4930222, 9860444, 19720888]

約数ペア:

[(1, 19720888), (2, 9860444), (4, 4930222), (8, 2465111), (11, 1792808), (22, 896404), (44, 448202), (88, 224101)]