21221068

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{1571}}^1$

素因数の和:1893

約数の個数: 24

約数和(自身を含む): 40670784

約数和(自身を除く): 19449716

約数列:

[1, 2, 4, 11, 22, 44, 307, 614, 1228, 1571, 3142, 3377, 6284, 6754, 13508, 17281, 34562, 69124, 482297, 964594, 1929188, 5305267, 10610534, 21221068]

約数ペア:

[(1, 21221068), (2, 10610534), (4, 5305267), (11, 1929188), (22, 964594), (44, 482297), (307, 69124), (614, 34562), (1228, 17281), (1571, 13508), (3142, 6754), (3377, 6284)]