1997583

素因数分解:

$3^1\times 7^2\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:251

約数の個数: 24

約数和(自身を含む): 3151872

約数和(自身を除く): 1154289

約数列:

[1, 3, 7, 21, 49, 107, 127, 147, 321, 381, 749, 889, 2247, 2667, 5243, 6223, 13589, 15729, 18669, 40767, 95123, 285369, 665861, 1997583]

約数ペア:

[(1, 1997583), (3, 665861), (7, 285369), (21, 95123), (49, 40767), (107, 18669), (127, 15729), (147, 13589), (321, 6223), (381, 5243), (749, 2667), (889, 2247)]