28404945

素因数分解:

$3^3\times 5^1\times {\mathrm{210407}}^1$

素因数の和:210421

約数の個数: 16

約数和(自身を含む): 50497920

約数和(自身を除く): 22092975

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 210407, 631221, 1052035, 1893663, 3156105, 5680989, 9468315, 28404945]

約数ペア:

[(1, 28404945), (3, 9468315), (5, 5680989), (9, 3156105), (15, 1893663), (27, 1052035), (45, 631221), (135, 210407)]