128085321

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{20399}}^1$

素因数の和:20445

約数の個数: 32

約数和(自身を含む): 219340800

約数和(自身を除く): 91255479

約数列:

[1, 3, 7, 13, 21, 23, 39, 69, 91, 161, 273, 299, 483, 897, 2093, 6279, 20399, 61197, 142793, 265187, 428379, 469177, 795561, 1407531, 1856309, 3284239, 5568927, 6099301, 9852717, 18297903, 42695107, 128085321]

約数ペア:

[(1, 128085321), (3, 42695107), (7, 18297903), (13, 9852717), (21, 6099301), (23, 5568927), (39, 3284239), (69, 1856309), (91, 1407531), (161, 795561), (273, 469177), (299, 428379), (483, 265187), (897, 142793), (2093, 61197), (6279, 20399)]