21130448

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28099}}^1$

素因数の和:28154

約数の個数: 20

約数和(自身を含む): 41812800

約数和(自身を除く): 20682352

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28099, 56198, 112396, 224792, 449584, 1320653, 2641306, 5282612, 10565224, 21130448]

約数ペア:

[(1, 21130448), (2, 10565224), (4, 5282612), (8, 2641306), (16, 1320653), (47, 449584), (94, 224792), (188, 112396), (376, 56198), (752, 28099)]