18768753

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{1667}}^1$

素因数の和:1818

約数の個数: 20

約数和(自身を含む): 28255920

約数和(自身を除く): 9487167

約数列:

[1, 3, 9, 27, 81, 139, 417, 1251, 1667, 3753, 5001, 11259, 15003, 45009, 135027, 231713, 695139, 2085417, 6256251, 18768753]

約数ペア:

[(1, 18768753), (3, 6256251), (9, 2085417), (27, 695139), (81, 231713), (139, 135027), (417, 45009), (1251, 15003), (1667, 11259), (3753, 5001)]