21000819826

素因数分解:

$2^1\times 7^1\times {\mathrm{3319}}^1\times {\mathrm{451961}}^1$

素因数の和:455289

約数の個数: 16

約数和(自身を含む): 36012332160

約数和(自身を除く): 15011512334

約数列:

[1, 2, 7, 14, 3319, 6638, 23233, 46466, 451961, 903922, 3163727, 6327454, 1500058559, 3000117118, 10500409913, 21000819826]

約数ペア:

[(1, 21000819826), (2, 10500409913), (7, 3000117118), (14, 1500058559), (3319, 6327454), (6638, 3163727), (23233, 903922), (46466, 451961)]