128339631

素因数分解:

$3^2\times 7^1\times {\mathrm{269}}^1\times {\mathrm{7573}}^1$

素因数の和:7855

約数の個数: 24

約数和(自身を含む): 212677920

約数和(自身を除く): 84338289

約数列:

[1, 3, 7, 9, 21, 63, 269, 807, 1883, 2421, 5649, 7573, 16947, 22719, 53011, 68157, 159033, 477099, 2037137, 6111411, 14259959, 18334233, 42779877, 128339631]

約数ペア:

[(1, 128339631), (3, 42779877), (7, 18334233), (9, 14259959), (21, 6111411), (63, 2037137), (269, 477099), (807, 159033), (1883, 68157), (2421, 53011), (5649, 22719), (7573, 16947)]