161567217

素因数分解:

$3^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{4253}}^1$

素因数の和:4339

約数の個数: 40

約数和(自身を含む): 280015296

約数和(自身を除く): 118448079

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 81, 189, 201, 469, 567, 603, 1407, 1809, 4221, 4253, 5427, 12663, 12759, 29771, 37989, 38277, 89313, 114831, 267939, 284951, 344493, 803817, 854853, 1994657, 2411451, 2564559, 5983971, 7693677, 17951913, 23081031, 53855739, 161567217]

約数ペア:

[(1, 161567217), (3, 53855739), (7, 23081031), (9, 17951913), (21, 7693677), (27, 5983971), (63, 2564559), (67, 2411451), (81, 1994657), (189, 854853), (201, 803817), (469, 344493), (567, 284951), (603, 267939), (1407, 114831), (1809, 89313), (4221, 38277), (4253, 37989), (5427, 29771), (12663, 12759)]