19899368

素因数分解:

$2^3\times {\mathrm{43}}^1\times {\mathrm{57847}}^1$

素因数の和:57896

約数の個数: 16

約数和(自身を含む): 38179680

約数和(自身を除く): 18280312

約数列:

[1, 2, 4, 8, 43, 86, 172, 344, 57847, 115694, 231388, 462776, 2487421, 4974842, 9949684, 19899368]

約数ペア:

[(1, 19899368), (2, 9949684), (4, 4974842), (8, 2487421), (43, 462776), (86, 231388), (172, 115694), (344, 57847)]