128419767

素因数分解:

$3^2\times 7^1\times {\mathrm{109}}^1\times {\mathrm{18701}}^1$

素因数の和:18823

約数の個数: 24

約数和(自身を含む): 213950880

約数和(自身を除く): 85531113

約数列:

[1, 3, 7, 9, 21, 63, 109, 327, 763, 981, 2289, 6867, 18701, 56103, 130907, 168309, 392721, 1178163, 2038409, 6115227, 14268863, 18345681, 42806589, 128419767]

約数ペア:

[(1, 128419767), (3, 42806589), (7, 18345681), (9, 14268863), (21, 6115227), (63, 2038409), (109, 1178163), (327, 392721), (763, 168309), (981, 130907), (2289, 56103), (6867, 18701)]