20217842

素因数分解:

$2^1\times {\mathrm{1021}}^1\times {\mathrm{9901}}^1$

素因数の和:10924

約数の個数: 8

約数和(自身を含む): 30359532

約数和(自身を除く): 10141690

約数列:

[1, 2, 1021, 2042, 9901, 19802, 10108921, 20217842]

約数ペア:

[(1, 20217842), (2, 10108921), (1021, 19802), (2042, 9901)]