257753643

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{10169}}^1$

素因数の和:10267

約数の個数: 32

約数和(自身を含む): 421770240

約数和(自身を除く): 164016597

約数列:

[1, 3, 7, 17, 21, 51, 71, 119, 213, 357, 497, 1207, 1491, 3621, 8449, 10169, 25347, 30507, 71183, 172873, 213549, 518619, 721999, 1210111, 2165997, 3630333, 5053993, 12273983, 15161979, 36821949, 85917881, 257753643]

約数ペア:

[(1, 257753643), (3, 85917881), (7, 36821949), (17, 15161979), (21, 12273983), (51, 5053993), (71, 3630333), (119, 2165997), (213, 1210111), (357, 721999), (497, 518619), (1207, 213549), (1491, 172873), (3621, 71183), (8449, 30507), (10169, 25347)]