20496916

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{42349}}^1$

素因数の和:42375

約数の個数: 18

約数和(自身を含む): 39427850

約数和(自身を除く): 18930934

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 42349, 84698, 169396, 465839, 931678, 1863356, 5124229, 10248458, 20496916]

約数ペア:

[(1, 20496916), (2, 10248458), (4, 5124229), (11, 1863356), (22, 931678), (44, 465839), (121, 169396), (242, 84698), (484, 42349)]