21049105

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{54673}}^1$

素因数の和:54696

約数の個数: 16

約数和(自身を含む): 31492224

約数和(自身を除く): 10443119

約数列:

[1, 5, 7, 11, 35, 55, 77, 385, 54673, 273365, 382711, 601403, 1913555, 3007015, 4209821, 21049105]

約数ペア:

[(1, 21049105), (5, 4209821), (7, 3007015), (11, 1913555), (35, 601403), (55, 382711), (77, 273365), (385, 54673)]