19966736

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4441}}^1$

素因数の和:4730

約数の個数: 20

約数和(自身を含む): 38831964

約数和(自身を除く): 18865228

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4441, 4496, 8882, 17764, 35528, 71056, 1247921, 2495842, 4991684, 9983368, 19966736]

約数ペア:

[(1, 19966736), (2, 9983368), (4, 4991684), (8, 2495842), (16, 1247921), (281, 71056), (562, 35528), (1124, 17764), (2248, 8882), (4441, 4496)]