20481476

素因数分解:

$2^2\times {\mathrm{113}}^2\times {\mathrm{401}}^1$

素因数の和:631

約数の個数: 18

約数和(自身を含む): 36252762

約数和(自身を除く): 15771286

約数列:

[1, 2, 4, 113, 226, 401, 452, 802, 1604, 12769, 25538, 45313, 51076, 90626, 181252, 5120369, 10240738, 20481476]

約数ペア:

[(1, 20481476), (2, 10240738), (4, 5120369), (113, 181252), (226, 90626), (401, 51076), (452, 45313), (802, 25538), (1604, 12769)]