18886287

素因数分解:

$3^1\times 7^1\times {\mathrm{449}}^1\times {\mathrm{2003}}^1$

素因数の和:2462

約数の個数: 16

約数和(自身を含む): 28857600

約数和(自身を除く): 9971313

約数列:

[1, 3, 7, 21, 449, 1347, 2003, 3143, 6009, 9429, 14021, 42063, 899347, 2698041, 6295429, 18886287]

約数ペア:

[(1, 18886287), (3, 6295429), (7, 2698041), (21, 899347), (449, 42063), (1347, 14021), (2003, 9429), (3143, 6009)]