19841731

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{83}}^1$

素因数の和:211

約数の個数: 32

約数和(自身を含む): 25740288

約数和(自身を除く): 5898557

約数列:

[1, 7, 13, 37, 71, 83, 91, 259, 481, 497, 581, 923, 1079, 2627, 3071, 3367, 5893, 6461, 7553, 18389, 21497, 34151, 39923, 41251, 76609, 218041, 239057, 279461, 536263, 1526287, 2834533, 19841731]

約数ペア:

[(1, 19841731), (7, 2834533), (13, 1526287), (37, 536263), (71, 279461), (83, 239057), (91, 218041), (259, 76609), (481, 41251), (497, 39923), (581, 34151), (923, 21497), (1079, 18389), (2627, 7553), (3071, 6461), (3367, 5893)]