20268985

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{7841}}^1$

素因数の和:7904

約数の個数: 16

約数和(自身を含む): 27101952

約数和(自身を除く): 6832967

約数列:

[1, 5, 11, 47, 55, 235, 517, 2585, 7841, 39205, 86251, 368527, 431255, 1842635, 4053797, 20268985]

約数ペア:

[(1, 20268985), (5, 4053797), (11, 1842635), (47, 431255), (55, 368527), (235, 86251), (517, 39205), (2585, 7841)]