686799

素因数分解:

$3^4\times {\mathrm{61}}^1\times {\mathrm{139}}^1$

素因数の和:212

約数の個数: 20

約数和(自身を含む): 1050280

約数和(自身を除く): 363481

約数列:

[1, 3, 9, 27, 61, 81, 139, 183, 417, 549, 1251, 1647, 3753, 4941, 8479, 11259, 25437, 76311, 228933, 686799]

約数ペア:

[(1, 686799), (3, 228933), (9, 76311), (27, 25437), (61, 11259), (81, 8479), (139, 4941), (183, 3753), (417, 1647), (549, 1251)]