2891007721

素因数分解:

$7^1\times {\mathrm{439}}^2\times {\mathrm{2143}}^1$

素因数の和:3028

約数の個数: 12

約数和(自身を含む): 3313097472

約数和(自身を除く): 422089751

約数列:

[1, 7, 439, 2143, 3073, 15001, 192721, 940777, 1349047, 6585439, 413001103, 2891007721]

約数ペア:

[(1, 2891007721), (7, 413001103), (439, 6585439), (2143, 1349047), (3073, 940777), (15001, 192721)]