51815619

素因数分解:

$3^5\times {\mathrm{23}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:238

約数の個数: 48

約数和(自身を含む): 82747392

約数和(自身を除く): 30931773

約数列:

[1, 3, 9, 23, 27, 69, 73, 81, 127, 207, 219, 243, 381, 621, 657, 1143, 1679, 1863, 1971, 2921, 3429, 5037, 5589, 5913, 8763, 9271, 10287, 15111, 17739, 26289, 27813, 30861, 45333, 78867, 83439, 135999, 213233, 236601, 250317, 407997, 639699, 709803, 750951, 1919097, 2252853, 5757291, 17271873, 51815619]

約数ペア:

[(1, 51815619), (3, 17271873), (9, 5757291), (23, 2252853), (27, 1919097), (69, 750951), (73, 709803), (81, 639699), (127, 407997), (207, 250317), (219, 236601), (243, 213233), (381, 135999), (621, 83439), (657, 78867), (1143, 45333), (1679, 30861), (1863, 27813), (1971, 26289), (2921, 17739), (3429, 15111), (5037, 10287), (5589, 9271), (5913, 8763)]