18228581

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{101}}^1$

素因数の和:209

約数の個数: 32

約数和(自身を含む): 23500800

約数和(自身を除く): 5272219

約数列:

[1, 7, 19, 23, 59, 101, 133, 161, 413, 437, 707, 1121, 1357, 1919, 2323, 3059, 5959, 7847, 9499, 13433, 16261, 25783, 41713, 44137, 113221, 137057, 180481, 308959, 792547, 959399, 2604083, 18228581]

約数ペア:

[(1, 18228581), (7, 2604083), (19, 959399), (23, 792547), (59, 308959), (101, 180481), (133, 137057), (161, 113221), (413, 44137), (437, 41713), (707, 25783), (1121, 16261), (1357, 13433), (1919, 9499), (2323, 7847), (3059, 5959)]