21085516

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{47}}^1\times {\mathrm{5903}}^1$

素因数の和:5973

約数の個数: 24

約数和(自身を含む): 39674880

約数和(自身を除く): 18589364

約数列:

[1, 2, 4, 19, 38, 47, 76, 94, 188, 893, 1786, 3572, 5903, 11806, 23612, 112157, 224314, 277441, 448628, 554882, 1109764, 5271379, 10542758, 21085516]

約数ペア:

[(1, 21085516), (2, 10542758), (4, 5271379), (19, 1109764), (38, 554882), (47, 448628), (76, 277441), (94, 224314), (188, 112157), (893, 23612), (1786, 11806), (3572, 5903)]