21750004

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{317}}^1\times {\mathrm{1009}}^1$

素因数の和:1347

約数の個数: 24

約数和(自身を含む): 40468680

約数和(自身を除く): 18718676

約数列:

[1, 2, 4, 17, 34, 68, 317, 634, 1009, 1268, 2018, 4036, 5389, 10778, 17153, 21556, 34306, 68612, 319853, 639706, 1279412, 5437501, 10875002, 21750004]

約数ペア:

[(1, 21750004), (2, 10875002), (4, 5437501), (17, 1279412), (34, 639706), (68, 319853), (317, 68612), (634, 34306), (1009, 21556), (1268, 17153), (2018, 10778), (4036, 5389)]