289780263

素因数分解:

$3^2\times {\mathrm{37}}^1\times {\mathrm{870211}}^1$

素因数の和:870254

約数の個数: 12

約数和(自身を含む): 429884728

約数和(自身を除く): 140104465

約数列:

[1, 3, 9, 37, 111, 333, 870211, 2610633, 7831899, 32197807, 96593421, 289780263]

約数ペア:

[(1, 289780263), (3, 96593421), (9, 32197807), (37, 7831899), (111, 2610633), (333, 870211)]