20902552

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{173}}^1\times {\mathrm{1373}}^1$

素因数の和:1563

約数の個数: 32

約数和(自身を含む): 43033680

約数和(自身を除く): 22131128

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 173, 346, 692, 1373, 1384, 1903, 2746, 3806, 5492, 7612, 10984, 15103, 15224, 30206, 60412, 120824, 237529, 475058, 950116, 1900232, 2612819, 5225638, 10451276, 20902552]

約数ペア:

[(1, 20902552), (2, 10451276), (4, 5225638), (8, 2612819), (11, 1900232), (22, 950116), (44, 475058), (88, 237529), (173, 120824), (346, 60412), (692, 30206), (1373, 15224), (1384, 15103), (1903, 10984), (2746, 7612), (3806, 5492)]