21903464

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{248903}}^1$

素因数の和:248920

約数の個数: 16

約数和(自身を含む): 44802720

約数和(自身を除く): 22899256

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 248903, 497806, 995612, 1991224, 2737933, 5475866, 10951732, 21903464]

約数ペア:

[(1, 21903464), (2, 10951732), (4, 5475866), (8, 2737933), (11, 1991224), (22, 995612), (44, 497806), (88, 248903)]