20121129861

素因数分解:

$3^1\times 7^1\times {\mathrm{1321}}^1\times {\mathrm{725321}}^1$

素因数の和:726652

約数の個数: 16

約数和(自身を含む): 30684021888

約数和(自身を除く): 10562892027

約数列:

[1, 3, 7, 21, 1321, 3963, 9247, 27741, 725321, 2175963, 5077247, 15231741, 958149041, 2874447123, 6707043287, 20121129861]

約数ペア:

[(1, 20121129861), (3, 6707043287), (7, 2874447123), (21, 958149041), (1321, 15231741), (3963, 5077247), (9247, 2175963), (27741, 725321)]