128108001

素因数分解:

$3^1\times 7^2\times {\mathrm{103}}^1\times {\mathrm{8461}}^1$

素因数の和:8581

約数の個数: 24

約数和(自身を含む): 200650944

約数和(自身を除く): 72542943

約数列:

[1, 3, 7, 21, 49, 103, 147, 309, 721, 2163, 5047, 8461, 15141, 25383, 59227, 177681, 414589, 871483, 1243767, 2614449, 6100381, 18301143, 42702667, 128108001]

約数ペア:

[(1, 128108001), (3, 42702667), (7, 18301143), (21, 6100381), (49, 2614449), (103, 1243767), (147, 871483), (309, 414589), (721, 177681), (2163, 59227), (5047, 25383), (8461, 15141)]