171961569

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{691}}^1\times {\mathrm{709}}^1$

素因数の和:1422

約数の個数: 32

約数和(自身を含む): 275139200

約数和(自身を除く): 103177631

約数列:

[1, 3, 9, 13, 27, 39, 117, 351, 691, 709, 2073, 2127, 6219, 6381, 8983, 9217, 18657, 19143, 26949, 27651, 80847, 82953, 242541, 248859, 489919, 1469757, 4409271, 6368947, 13227813, 19106841, 57320523, 171961569]

約数ペア:

[(1, 171961569), (3, 57320523), (9, 19106841), (13, 13227813), (27, 6368947), (39, 4409271), (117, 1469757), (351, 489919), (691, 248859), (709, 242541), (2073, 82953), (2127, 80847), (6219, 27651), (6381, 26949), (8983, 19143), (9217, 18657)]