311907213

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{61}}^1\times {\mathrm{149}}^1$

素因数の和:291

約数の個数: 64

約数和(自身を含む): 499968000

約数和(自身を除く): 188060787

約数列:

[1, 3, 9, 27, 31, 41, 61, 93, 123, 149, 183, 279, 369, 447, 549, 837, 1107, 1271, 1341, 1647, 1891, 2501, 3813, 4023, 4619, 5673, 6109, 7503, 9089, 11439, 13857, 17019, 18327, 22509, 27267, 34317, 41571, 51057, 54981, 67527, 77531, 81801, 124713, 164943, 189379, 232593, 245403, 281759, 372649, 568137, 697779, 845277, 1117947, 1704411, 2093337, 2535831, 3353841, 5113233, 7607493, 10061523, 11552119, 34656357, 103969071, 311907213]

約数ペア:

[(1, 311907213), (3, 103969071), (9, 34656357), (27, 11552119), (31, 10061523), (41, 7607493), (61, 5113233), (93, 3353841), (123, 2535831), (149, 2093337), (183, 1704411), (279, 1117947), (369, 845277), (447, 697779), (549, 568137), (837, 372649), (1107, 281759), (1271, 245403), (1341, 232593), (1647, 189379), (1891, 164943), (2501, 124713), (3813, 81801), (4023, 77531), (4619, 67527), (5673, 54981), (6109, 51057), (7503, 41571), (9089, 34317), (11439, 27267), (13857, 22509), (17019, 18327)]