21018962105

素因数分解:

$5^1\times {\mathrm{59}}^1\times {\mathrm{4339}}^1\times {\mathrm{16421}}^1$

素因数の和:20824

約数の個数: 16

約数和(自身を含む): 25657732800

約数和(自身を除く): 4638770695

約数列:

[1, 5, 59, 295, 4339, 16421, 21695, 82105, 256001, 968839, 1280005, 4844195, 71250719, 356253595, 4203792421, 21018962105]

約数ペア:

[(1, 21018962105), (5, 4203792421), (59, 356253595), (295, 71250719), (4339, 4844195), (16421, 1280005), (21695, 968839), (82105, 256001)]