20486785

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{21911}}^1$

素因数の和:21944

約数の個数: 16

約数和(自身を含む): 28397952

約数和(自身を除く): 7911167

約数列:

[1, 5, 11, 17, 55, 85, 187, 935, 21911, 109555, 241021, 372487, 1205105, 1862435, 4097357, 20486785]

約数ペア:

[(1, 20486785), (5, 4097357), (11, 1862435), (17, 1205105), (55, 372487), (85, 241021), (187, 109555), (935, 21911)]