18422781

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{751}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 28804608

約数和(自身を除く): 10381827

約数列:

[1, 3, 13, 17, 37, 39, 51, 111, 221, 481, 629, 663, 751, 1443, 1887, 2253, 8177, 9763, 12767, 24531, 27787, 29289, 38301, 83361, 165971, 361231, 472379, 497913, 1083693, 1417137, 6140927, 18422781]

約数ペア:

[(1, 18422781), (3, 6140927), (13, 1417137), (17, 1083693), (37, 497913), (39, 472379), (51, 361231), (111, 165971), (221, 83361), (481, 38301), (629, 29289), (663, 27787), (751, 24531), (1443, 12767), (1887, 9763), (2253, 8177)]