18740883

素因数分解:

$3^1\times 7^2\times {\mathrm{23}}^2\times {\mathrm{241}}^1$

素因数の和:304

約数の個数: 36

約数和(自身を含む): 30512328

約数和(自身を除く): 11771445

約数列:

[1, 3, 7, 21, 23, 49, 69, 147, 161, 241, 483, 529, 723, 1127, 1587, 1687, 3381, 3703, 5061, 5543, 11109, 11809, 16629, 25921, 35427, 38801, 77763, 116403, 127489, 271607, 382467, 814821, 892423, 2677269, 6246961, 18740883]

約数ペア:

[(1, 18740883), (3, 6246961), (7, 2677269), (21, 892423), (23, 814821), (49, 382467), (69, 271607), (147, 127489), (161, 116403), (241, 77763), (483, 38801), (529, 35427), (723, 25921), (1127, 16629), (1587, 11809), (1687, 11109), (3381, 5543), (3703, 5061)]