18077423

素因数分解:

$7^2\times {\mathrm{13}}^2\times {\mathrm{37}}^1\times {\mathrm{59}}^1$

素因数の和:136

約数の個数: 36

約数和(自身を含む): 23782680

約数和(自身を除く): 5705257

約数列:

[1, 7, 13, 37, 49, 59, 91, 169, 259, 413, 481, 637, 767, 1183, 1813, 2183, 2891, 3367, 5369, 6253, 8281, 9971, 15281, 23569, 28379, 37583, 43771, 69797, 106967, 198653, 306397, 368927, 488579, 1390571, 2582489, 18077423]

約数ペア:

[(1, 18077423), (7, 2582489), (13, 1390571), (37, 488579), (49, 368927), (59, 306397), (91, 198653), (169, 106967), (259, 69797), (413, 43771), (481, 37583), (637, 28379), (767, 23569), (1183, 15281), (1813, 9971), (2183, 8281), (2891, 6253), (3367, 5369)]