18764039

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{193}}^1$

素因数の和:279

約数の個数: 32

約数和(自身を含む): 24583680

約数和(自身を除く): 5819641

約数列:

[1, 7, 17, 19, 43, 119, 133, 193, 301, 323, 731, 817, 1351, 2261, 3281, 3667, 5117, 5719, 8299, 13889, 22967, 25669, 58093, 62339, 97223, 141083, 157681, 436373, 987581, 1103767, 2680577, 18764039]

約数ペア:

[(1, 18764039), (7, 2680577), (17, 1103767), (19, 987581), (43, 436373), (119, 157681), (133, 141083), (193, 97223), (301, 62339), (323, 58093), (731, 25669), (817, 22967), (1351, 13889), (2261, 8299), (3281, 5719), (3667, 5117)]