81410427

素因数分解:

$3^4\times 7^1\times {\mathrm{67}}^1\times {\mathrm{2143}}^1$

素因数の和:2229

約数の個数: 40

約数和(自身を含む): 141126656

約数和(自身を除く): 59716229

約数列:

[1, 3, 7, 9, 21, 27, 63, 67, 81, 189, 201, 469, 567, 603, 1407, 1809, 2143, 4221, 5427, 6429, 12663, 15001, 19287, 37989, 45003, 57861, 135009, 143581, 173583, 405027, 430743, 1005067, 1215081, 1292229, 3015201, 3876687, 9045603, 11630061, 27136809, 81410427]

約数ペア:

[(1, 81410427), (3, 27136809), (7, 11630061), (9, 9045603), (21, 3876687), (27, 3015201), (63, 1292229), (67, 1215081), (81, 1005067), (189, 430743), (201, 405027), (469, 173583), (567, 143581), (603, 135009), (1407, 57861), (1809, 45003), (2143, 37989), (4221, 19287), (5427, 15001), (6429, 12663)]