28931985

素因数分解:

$3^4\times 5^1\times {\mathrm{71437}}^1$

素因数の和:71454

約数の個数: 20

約数和(自身を含む): 51863988

約数和(自身を除く): 22932003

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 135, 405, 71437, 214311, 357185, 642933, 1071555, 1928799, 3214665, 5786397, 9643995, 28931985]

約数ペア:

[(1, 28931985), (3, 9643995), (5, 5786397), (9, 3214665), (15, 1928799), (27, 1071555), (45, 642933), (81, 357185), (135, 214311), (405, 71437)]