18851105

素因数分解:

$5^1\times 7^1\times {\mathrm{13}}^2\times {\mathrm{3187}}^1$

素因数の和:3225

約数の個数: 24

約数和(自身を含む): 28003392

約数和(自身を除く): 9152287

約数列:

[1, 5, 7, 13, 35, 65, 91, 169, 455, 845, 1183, 3187, 5915, 15935, 22309, 41431, 111545, 207155, 290017, 538603, 1450085, 2693015, 3770221, 18851105]

約数ペア:

[(1, 18851105), (5, 3770221), (7, 2693015), (13, 1450085), (35, 538603), (65, 290017), (91, 207155), (169, 111545), (455, 41431), (845, 22309), (1183, 15935), (3187, 5915)]