128843589

素因数分解:

$3^1\times 7^2\times {\mathrm{409}}^1\times {\mathrm{2143}}^1$

素因数の和:2569

約数の個数: 24

約数和(自身を含む): 200421120

約数和(自身を除く): 71577531

約数列:

[1, 3, 7, 21, 49, 147, 409, 1227, 2143, 2863, 6429, 8589, 15001, 20041, 45003, 60123, 105007, 315021, 876487, 2629461, 6135409, 18406227, 42947863, 128843589]

約数ペア:

[(1, 128843589), (3, 42947863), (7, 18406227), (21, 6135409), (49, 2629461), (147, 876487), (409, 315021), (1227, 105007), (2143, 60123), (2863, 45003), (6429, 20041), (8589, 15001)]