420179949

素因数分解:

$3^2\times 7^2\times {\mathrm{952789}}^1$

素因数の和:952809

約数の個数: 18

約数和(自身を含む): 706017390

約数和(自身を除く): 285837441

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 441, 952789, 2858367, 6669523, 8575101, 20008569, 46686661, 60025707, 140059983, 420179949]

約数ペア:

[(1, 420179949), (3, 140059983), (7, 60025707), (9, 46686661), (21, 20008569), (49, 8575101), (63, 6669523), (147, 2858367), (441, 952789)]