20834851821

素因数分解:

$3^1\times 7^1\times {\mathrm{7129}}^1\times {\mathrm{139169}}^1$

素因数の和:146308

約数の個数: 16

約数和(自身を含む): 31753027200

約数和(自身を除く): 10918175379

約数列:

[1, 3, 7, 21, 7129, 21387, 49903, 139169, 149709, 417507, 974183, 2922549, 992135801, 2976407403, 6944950607, 20834851821]

約数ペア:

[(1, 20834851821), (3, 6944950607), (7, 2976407403), (21, 992135801), (7129, 2922549), (21387, 974183), (49903, 417507), (139169, 149709)]