396704002

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{499}}^1\times {\mathrm{20921}}^1$

素因数の和:21441

約数の個数: 16

約数和(自身を含む): 627660000

約数和(自身を除く): 230955998

約数列:

[1, 2, 19, 38, 499, 998, 9481, 18962, 20921, 41842, 397499, 794998, 10439579, 20879158, 198352001, 396704002]

約数ペア:

[(1, 396704002), (2, 198352001), (19, 20879158), (38, 10439579), (499, 794998), (998, 397499), (9481, 41842), (18962, 20921)]