18338409

素因数分解:

$3^2\times {\mathrm{107}}^1\times {\mathrm{137}}^1\times {\mathrm{139}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 27125280

約数和(自身を除く): 8786871

約数列:

[1, 3, 9, 107, 137, 139, 321, 411, 417, 963, 1233, 1251, 14659, 14873, 19043, 43977, 44619, 57129, 131931, 133857, 171387, 2037601, 6112803, 18338409]

約数ペア:

[(1, 18338409), (3, 6112803), (9, 2037601), (107, 171387), (137, 133857), (139, 131931), (321, 57129), (411, 44619), (417, 43977), (963, 19043), (1233, 14873), (1251, 14659)]