20199778851

素因数分解:

$3^1\times 7^1\times {\mathrm{6761}}^1\times {\mathrm{142271}}^1$

素因数の和:149042

約数の個数: 16

約数和(自身を含む): 30785384448

約数和(自身を除く): 10585605597

約数列:

[1, 3, 7, 21, 6761, 20283, 47327, 141981, 142271, 426813, 995897, 2987691, 961894231, 2885682693, 6733259617, 20199778851]

約数ペア:

[(1, 20199778851), (3, 6733259617), (7, 2885682693), (21, 961894231), (6761, 2987691), (20283, 995897), (47327, 426813), (141981, 142271)]