399879171

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{625789}}^1$

素因数の和:625866

約数の個数: 12

約数和(自身を含む): 585739440

約数和(自身を除く): 185860269

約数列:

[1, 3, 9, 71, 213, 639, 625789, 1877367, 5632101, 44431019, 133293057, 399879171]

約数ペア:

[(1, 399879171), (3, 133293057), (9, 44431019), (71, 5632101), (213, 1877367), (639, 625789)]