128885337

素因数分解:

$3^4\times 7^3\times {\mathrm{4639}}^1$

素因数の和:4672

約数の個数: 40

約数和(自身を含む): 224576000

約数和(自身を除く): 95690663

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 343, 441, 567, 1029, 1323, 3087, 3969, 4639, 9261, 13917, 27783, 32473, 41751, 97419, 125253, 227311, 292257, 375759, 681933, 876771, 1591177, 2045799, 2630313, 4773531, 6137397, 14320593, 18412191, 42961779, 128885337]

約数ペア:

[(1, 128885337), (3, 42961779), (7, 18412191), (9, 14320593), (21, 6137397), (27, 4773531), (49, 2630313), (63, 2045799), (81, 1591177), (147, 876771), (189, 681933), (343, 375759), (441, 292257), (567, 227311), (1029, 125253), (1323, 97419), (3087, 41751), (3969, 32473), (4639, 27783), (9261, 13917)]