20261199

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{107}}^1\times {\mathrm{127}}^1$

素因数の和:315

約数の個数: 32

約数和(自身を含む): 31850496

約数和(自身を除く): 11589297

約数列:

[1, 3, 7, 21, 71, 107, 127, 213, 321, 381, 497, 749, 889, 1491, 2247, 2667, 7597, 9017, 13589, 22791, 27051, 40767, 53179, 63119, 95123, 159537, 189357, 285369, 964819, 2894457, 6753733, 20261199]

約数ペア:

[(1, 20261199), (3, 6753733), (7, 2894457), (21, 964819), (71, 285369), (107, 189357), (127, 159537), (213, 95123), (321, 63119), (381, 53179), (497, 40767), (749, 27051), (889, 22791), (1491, 13589), (2247, 9017), (2667, 7597)]