828478721

素因数分解:

$7^2\times {\mathrm{43}}^1\times {\mathrm{393203}}^1$

素因数の和:393260

約数の個数: 12

約数和(自身を含む): 986155632

約数和(自身を除く): 157676911

約数列:

[1, 7, 43, 49, 301, 2107, 393203, 2752421, 16907729, 19266947, 118354103, 828478721]

約数ペア:

[(1, 828478721), (7, 118354103), (43, 19266947), (49, 16907729), (301, 2752421), (2107, 393203)]