209905155

素因数分解:

$3^3\times 5^1\times {\mathrm{1554853}}^1$

素因数の和:1554867

約数の個数: 16

約数和(自身を含む): 373164960

約数和(自身を除く): 163259805

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 1554853, 4664559, 7774265, 13993677, 23322795, 41981031, 69968385, 209905155]

約数ペア:

[(1, 209905155), (3, 69968385), (5, 41981031), (9, 23322795), (15, 13993677), (27, 7774265), (45, 4664559), (135, 1554853)]