251328447

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{691}}^1\times {\mathrm{709}}^1$

素因数の和:1428

約数の個数: 32

約数和(自身を含む): 393056000

約数和(自身を除く): 141727553

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 691, 709, 2073, 2127, 6219, 6381, 13129, 13471, 18657, 19143, 39387, 40413, 118161, 121239, 354483, 363717, 489919, 1469757, 4409271, 9308461, 13227813, 27925383, 83776149, 251328447]

約数ペア:

[(1, 251328447), (3, 83776149), (9, 27925383), (19, 13227813), (27, 9308461), (57, 4409271), (171, 1469757), (513, 489919), (691, 363717), (709, 354483), (2073, 121239), (2127, 118161), (6219, 40413), (6381, 39387), (13129, 19143), (13471, 18657)]