18722067

素因数分解:

$3^1\times 7^2\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{101}}^1$

素因数の和:228

約数の個数: 48

約数和(自身を含む): 31907232

約数和(自身を除く): 13185165

約数列:

[1, 3, 7, 13, 21, 39, 49, 91, 97, 101, 147, 273, 291, 303, 637, 679, 707, 1261, 1313, 1911, 2037, 2121, 3783, 3939, 4753, 4949, 8827, 9191, 9797, 14259, 14847, 26481, 27573, 29391, 61789, 64337, 68579, 127361, 185367, 193011, 205737, 382083, 480053, 891527, 1440159, 2674581, 6240689, 18722067]

約数ペア:

[(1, 18722067), (3, 6240689), (7, 2674581), (13, 1440159), (21, 891527), (39, 480053), (49, 382083), (91, 205737), (97, 193011), (101, 185367), (147, 127361), (273, 68579), (291, 64337), (303, 61789), (637, 29391), (679, 27573), (707, 26481), (1261, 14847), (1313, 14259), (1911, 9797), (2037, 9191), (2121, 8827), (3783, 4949), (3939, 4753)]