639104259

素因数分解:

$3^1\times {\mathrm{61}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1$

素因数の和:555

約数の個数: 32

約数和(自身を含む): 884514816

約数和(自身を除く): 245410557

約数列:

[1, 3, 61, 107, 127, 183, 257, 321, 381, 771, 6527, 7747, 13589, 15677, 19581, 23241, 27499, 32639, 40767, 47031, 82497, 97917, 828929, 1677439, 1990979, 2486787, 3492373, 5032317, 5972937, 10477119, 213034753, 639104259]

約数ペア:

[(1, 639104259), (3, 213034753), (61, 10477119), (107, 5972937), (127, 5032317), (183, 3492373), (257, 2486787), (321, 1990979), (381, 1677439), (771, 828929), (6527, 97917), (7747, 82497), (13589, 47031), (15677, 40767), (19581, 32639), (23241, 27499)]