20831937

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 32735232

約数和(自身を除く): 11903295

約数列:

[1, 3, 7, 21, 73, 107, 127, 219, 321, 381, 511, 749, 889, 1533, 2247, 2667, 7811, 9271, 13589, 23433, 27813, 40767, 54677, 64897, 95123, 164031, 194691, 285369, 991997, 2975991, 6943979, 20831937]

約数ペア:

[(1, 20831937), (3, 6943979), (7, 2975991), (21, 991997), (73, 285369), (107, 194691), (127, 164031), (219, 95123), (321, 64897), (381, 54677), (511, 40767), (749, 27813), (889, 23433), (1533, 13589), (2247, 9271), (2667, 7811)]