28256985

素因数分解:

$3^3\times 5^1\times {\mathrm{209311}}^1$

素因数の和:209325

約数の個数: 16

約数和(自身を含む): 50234880

約数和(自身を除く): 21977895

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 209311, 627933, 1046555, 1883799, 3139665, 5651397, 9418995, 28256985]

約数ペア:

[(1, 28256985), (3, 9418995), (5, 5651397), (9, 3139665), (15, 1883799), (27, 1046555), (45, 627933), (135, 209311)]