20381402

素因数分解:

$2^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{8443}}^1$

素因数の和:8533

約数の個数: 16

約数和(自身を含む): 32830272

約数和(自身を除く): 12448870

約数列:

[1, 2, 17, 34, 71, 142, 1207, 2414, 8443, 16886, 143531, 287062, 599453, 1198906, 10190701, 20381402]

約数ペア:

[(1, 20381402), (2, 10190701), (17, 1198906), (34, 599453), (71, 287062), (142, 143531), (1207, 16886), (2414, 8443)]