408972141

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{640019}}^1$

素因数の和:640096

約数の個数: 12

約数和(自身を含む): 599058720

約数和(自身を除く): 190086579

約数列:

[1, 3, 9, 71, 213, 639, 640019, 1920057, 5760171, 45441349, 136324047, 408972141]

約数ペア:

[(1, 408972141), (3, 136324047), (9, 45441349), (71, 5760171), (213, 1920057), (639, 640019)]