18005001

素因数分解:

$3^1\times 7^2\times {\mathrm{53}}^1\times {\mathrm{2311}}^1$

素因数の和:2381

約数の個数: 24

約数和(自身を含む): 28465344

約数和(自身を除く): 10460343

約数列:

[1, 3, 7, 21, 49, 53, 147, 159, 371, 1113, 2311, 2597, 6933, 7791, 16177, 48531, 113239, 122483, 339717, 367449, 857381, 2572143, 6001667, 18005001]

約数ペア:

[(1, 18005001), (3, 6001667), (7, 2572143), (21, 857381), (49, 367449), (53, 339717), (147, 122483), (159, 113239), (371, 48531), (1113, 16177), (2311, 7791), (2597, 6933)]