20809294

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{49783}}^1$

素因数の和:49815

約数の個数: 16

約数和(自身を含む): 35844480

約数和(自身を除く): 15035186

約数列:

[1, 2, 11, 19, 22, 38, 209, 418, 49783, 99566, 547613, 945877, 1095226, 1891754, 10404647, 20809294]

約数ペア:

[(1, 20809294), (2, 10404647), (11, 1891754), (19, 1095226), (22, 945877), (38, 547613), (209, 99566), (418, 49783)]