21000888004

素因数分解:

$2^2\times {\mathrm{1721}}^1\times {\mathrm{3050681}}^1$

素因数の和:3052406

約数の個数: 12

約数和(自身を含む): 36772920828

約数和(自身を除く): 15772032824

約数列:

[1, 2, 4, 1721, 3442, 6884, 3050681, 6101362, 12202724, 5250222001, 10500444002, 21000888004]

約数ペア:

[(1, 21000888004), (2, 10500444002), (4, 5250222001), (1721, 12202724), (3442, 6101362), (6884, 3050681)]