20818407

素因数分解:

$3^1\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{2273}}^1$

素因数の和:2390

約数の個数: 16

約数和(自身を含む): 28816128

約数和(自身を除く): 7997721

約数列:

[1, 3, 43, 71, 129, 213, 2273, 3053, 6819, 9159, 97739, 161383, 293217, 484149, 6939469, 20818407]

約数ペア:

[(1, 20818407), (3, 6939469), (43, 484149), (71, 293217), (129, 161383), (213, 97739), (2273, 9159), (3053, 6819)]