21898264

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{66763}}^1$

素因数の和:66810

約数の個数: 16

約数和(自身を含む): 42061320

約数和(自身を除く): 20163056

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 66763, 133526, 267052, 534104, 2737283, 5474566, 10949132, 21898264]

約数ペア:

[(1, 21898264), (2, 10949132), (4, 5474566), (8, 2737283), (41, 534104), (82, 267052), (164, 133526), (328, 66763)]