21058972

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{307}}^1\times {\mathrm{1559}}^1$

素因数の和:1881

約数の個数: 24

約数和(自身を含む): 40360320

約数和(自身を除く): 19301348

約数列:

[1, 2, 4, 11, 22, 44, 307, 614, 1228, 1559, 3118, 3377, 6236, 6754, 13508, 17149, 34298, 68596, 478613, 957226, 1914452, 5264743, 10529486, 21058972]

約数ペア:

[(1, 21058972), (2, 10529486), (4, 5264743), (11, 1914452), (22, 957226), (44, 478613), (307, 68596), (614, 34298), (1228, 17149), (1559, 13508), (3118, 6754), (3377, 6236)]