20851919438

素因数分解:

$2^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{2858777}}^1$

素因数の和:2859307

約数の個数: 16

約数和(自身を含む): 35814770784

約数和(自身を除く): 14962851346

約数列:

[1, 2, 7, 14, 521, 1042, 3647, 7294, 2858777, 5717554, 20011439, 40022878, 1489422817, 2978845634, 10425959719, 20851919438]

約数ペア:

[(1, 20851919438), (2, 10425959719), (7, 2978845634), (14, 1489422817), (521, 40022878), (1042, 20011439), (3647, 5717554), (7294, 2858777)]