681786721

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{804943}}^1$

素因数の和:804972

約数の個数: 12

約数和(自身を含む): 856460416

約数和(自身を除く): 174673695

約数列:

[1, 7, 11, 77, 121, 847, 804943, 5634601, 8854373, 61980611, 97398103, 681786721]

約数ペア:

[(1, 681786721), (7, 97398103), (11, 61980611), (77, 8854373), (121, 5634601), (847, 804943)]