20390854

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{54521}}^1$

素因数の和:54551

約数の個数: 16

約数和(自身を含む): 35330256

約数和(自身を除く): 14939402

約数列:

[1, 2, 11, 17, 22, 34, 187, 374, 54521, 109042, 599731, 926857, 1199462, 1853714, 10195427, 20390854]

約数ペア:

[(1, 20390854), (2, 10195427), (11, 1853714), (17, 1199462), (22, 926857), (34, 599731), (187, 109042), (374, 54521)]