81019899

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{81101}}^1$

素因数の和:81147

約数の個数: 16

約数和(自身を含む): 123275040

約数和(自身を除く): 42255141

約数列:

[1, 3, 9, 27, 37, 111, 333, 999, 81101, 243303, 729909, 2189727, 3000737, 9002211, 27006633, 81019899]

約数ペア:

[(1, 81019899), (3, 27006633), (9, 9002211), (27, 3000737), (37, 2189727), (111, 729909), (333, 243303), (999, 81101)]