20321749

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{389}}^1\times {\mathrm{439}}^1$

素因数の和:852

約数の個数: 16

約数和(自身を含む): 24710400

約数和(自身を除く): 4388651

約数列:

[1, 7, 17, 119, 389, 439, 2723, 3073, 6613, 7463, 46291, 52241, 170771, 1195397, 2903107, 20321749]

約数ペア:

[(1, 20321749), (7, 2903107), (17, 1195397), (119, 170771), (389, 52241), (439, 46291), (2723, 7463), (3073, 6613)]