20752081

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{677}}^1$

素因数の和:864

約数の個数: 16

約数和(自身を含む): 24733440

約数和(自身を除く): 3981359

約数列:

[1, 7, 29, 151, 203, 677, 1057, 4379, 4739, 19633, 30653, 102227, 137431, 715589, 2964583, 20752081]

約数ペア:

[(1, 20752081), (7, 2964583), (29, 715589), (151, 137431), (203, 102227), (677, 30653), (1057, 19633), (4379, 4739)]