257278311

素因数分解:

$3^2\times {\mathrm{179}}^1\times {\mathrm{159701}}^1$

素因数の和:159886

約数の個数: 12

約数和(自身を含む): 373702680

約数和(自身を除く): 116424369

約数列:

[1, 3, 9, 179, 537, 1611, 159701, 479103, 1437309, 28586479, 85759437, 257278311]

約数ペア:

[(1, 257278311), (3, 85759437), (9, 28586479), (179, 1437309), (537, 479103), (1611, 159701)]