18218799

素因数分解:

$3^2\times {\mathrm{43}}^1\times {\mathrm{179}}^1\times {\mathrm{263}}^1$

素因数の和:491

約数の個数: 24

約数和(自身を含む): 27181440

約数和(自身を除く): 8962641

約数列:

[1, 3, 9, 43, 129, 179, 263, 387, 537, 789, 1611, 2367, 7697, 11309, 23091, 33927, 47077, 69273, 101781, 141231, 423693, 2024311, 6072933, 18218799]

約数ペア:

[(1, 18218799), (3, 6072933), (9, 2024311), (43, 423693), (129, 141231), (179, 101781), (263, 69273), (387, 47077), (537, 33927), (789, 23091), (1611, 11309), (2367, 7697)]