16640525

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{5501}}^1$

素因数の和:5533

約数の個数: 18

約数和(自身を含む): 22684746

約数和(自身を除く): 6044221

約数列:

[1, 5, 11, 25, 55, 121, 275, 605, 3025, 5501, 27505, 60511, 137525, 302555, 665621, 1512775, 3328105, 16640525]

約数ペア:

[(1, 16640525), (5, 3328105), (11, 1512775), (25, 665621), (55, 302555), (121, 137525), (275, 60511), (605, 27505), (3025, 5501)]