18129951

素因数分解:

$3^2\times 7^4\times {\mathrm{839}}^1$

素因数の和:873

約数の個数: 30

約数和(自身を含む): 30586920

約数和(自身を除く): 12456969

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 839, 1029, 2401, 2517, 3087, 5873, 7203, 7551, 17619, 21609, 41111, 52857, 123333, 287777, 369999, 863331, 2014439, 2589993, 6043317, 18129951]

約数ペア:

[(1, 18129951), (3, 6043317), (7, 2589993), (9, 2014439), (21, 863331), (49, 369999), (63, 287777), (147, 123333), (343, 52857), (441, 41111), (839, 21609), (1029, 17619), (2401, 7551), (2517, 7203), (3087, 5873)]