18573381

素因数分解:

$3^4\times {\mathrm{107}}^1\times {\mathrm{2143}}^1$

素因数の和:2262

約数の個数: 20

約数和(自身を含む): 28017792

約数和(自身を除く): 9444411

約数列:

[1, 3, 9, 27, 81, 107, 321, 963, 2143, 2889, 6429, 8667, 19287, 57861, 173583, 229301, 687903, 2063709, 6191127, 18573381]

約数ペア:

[(1, 18573381), (3, 6191127), (9, 2063709), (27, 687903), (81, 229301), (107, 173583), (321, 57861), (963, 19287), (2143, 8667), (2889, 6429)]