20512971368

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{134953759}}^1$

素因数の和:134953784

約数の個数: 16

約数和(自身を含む): 40486128000

約数和(自身を除く): 19973156632

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 134953759, 269907518, 539815036, 1079630072, 2564121421, 5128242842, 10256485684, 20512971368]

約数ペア:

[(1, 20512971368), (2, 10256485684), (4, 5128242842), (8, 2564121421), (19, 1079630072), (38, 539815036), (76, 269907518), (152, 134953759)]