18503559

素因数分解:

$3^4\times {\mathrm{31}}^1\times {\mathrm{7369}}^1$

素因数の和:7412

約数の個数: 20

約数和(自身を含む): 28536640

約数和(自身を除く): 10033081

約数列:

[1, 3, 9, 27, 31, 81, 93, 279, 837, 2511, 7369, 22107, 66321, 198963, 228439, 596889, 685317, 2055951, 6167853, 18503559]

約数ペア:

[(1, 18503559), (3, 6167853), (9, 2055951), (27, 685317), (31, 596889), (81, 228439), (93, 198963), (279, 66321), (837, 22107), (2511, 7369)]