19399216

素因数分解:

$2^4\times {\mathrm{223}}^1\times {\mathrm{5437}}^1$

素因数の和:5668

約数の個数: 20

約数和(自身を含む): 37761472

約数和(自身を除く): 18362256

約数列:

[1, 2, 4, 8, 16, 223, 446, 892, 1784, 3568, 5437, 10874, 21748, 43496, 86992, 1212451, 2424902, 4849804, 9699608, 19399216]

約数ペア:

[(1, 19399216), (2, 9699608), (4, 4849804), (8, 2424902), (16, 1212451), (223, 86992), (446, 43496), (892, 21748), (1784, 10874), (3568, 5437)]