19905326

素因数分解:

$2^1\times 7^1\times {\mathrm{521}}^1\times {\mathrm{2729}}^1$

素因数の和:3259

約数の個数: 16

約数和(自身を含む): 34201440

約数和(自身を除く): 14296114

約数列:

[1, 2, 7, 14, 521, 1042, 2729, 3647, 5458, 7294, 19103, 38206, 1421809, 2843618, 9952663, 19905326]

約数ペア:

[(1, 19905326), (2, 9952663), (7, 2843618), (14, 1421809), (521, 38206), (1042, 19103), (2729, 7294), (3647, 5458)]