19961278

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{2521}}^1$

素因数の和:2667

約数の個数: 16

約数和(自身を含む): 31050864

約数和(自身を除く): 11089586

約数列:

[1, 2, 37, 74, 107, 214, 2521, 3959, 5042, 7918, 93277, 186554, 269747, 539494, 9980639, 19961278]

約数ペア:

[(1, 19961278), (2, 9980639), (37, 539494), (74, 269747), (107, 186554), (214, 93277), (2521, 7918), (3959, 5042)]