21043263

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{8779}}^1$

素因数の和:8846

約数の個数: 16

約数和(自身を含む): 30343680

約数和(自身を除く): 9300417

約数列:

[1, 3, 17, 47, 51, 141, 799, 2397, 8779, 26337, 149243, 412613, 447729, 1237839, 7014421, 21043263]

約数ペア:

[(1, 21043263), (3, 7014421), (17, 1237839), (47, 447729), (51, 412613), (141, 149243), (799, 26337), (2397, 8779)]