257320673281

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{491}}^1\times {\mathrm{4403989}}^1$

素因数の和:4404504

約数の個数: 16

約数和(自身を含む): 312013883520

約数和(自身を除く): 54693210239

約数列:

[1, 7, 17, 119, 491, 3437, 8347, 58429, 4403989, 30827923, 74867813, 524074691, 2162358599, 15136510193, 36760096183, 257320673281]

約数ペア:

[(1, 257320673281), (7, 36760096183), (17, 15136510193), (119, 2162358599), (491, 524074691), (3437, 74867813), (8347, 30827923), (58429, 4403989)]