421778979

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{660061}}^1$

素因数の和:660138

約数の個数: 12

約数和(自身を含む): 617818032

約数和(自身を除く): 196039053

約数列:

[1, 3, 9, 71, 213, 639, 660061, 1980183, 5940549, 46864331, 140592993, 421778979]

約数ペア:

[(1, 421778979), (3, 140592993), (9, 46864331), (71, 5940549), (213, 1980183), (639, 660061)]