20187842

素因数分解:

$2^1\times {\mathrm{19}}^2\times {\mathrm{27961}}^1$

素因数の和:28001

約数の個数: 12

約数和(自身を含む): 31960566

約数和(自身を除く): 11772724

約数列:

[1, 2, 19, 38, 361, 722, 27961, 55922, 531259, 1062518, 10093921, 20187842]

約数ペア:

[(1, 20187842), (2, 10093921), (19, 1062518), (38, 531259), (361, 55922), (722, 27961)]