20816755

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{6619}}^1$

素因数の和:6678

約数の個数: 16

約数和(自身を含む): 27168480

約数和(自身を除く): 6351725

約数列:

[1, 5, 17, 37, 85, 185, 629, 3145, 6619, 33095, 112523, 244903, 562615, 1224515, 4163351, 20816755]

約数ペア:

[(1, 20816755), (5, 4163351), (17, 1224515), (37, 562615), (85, 244903), (185, 112523), (629, 33095), (3145, 6619)]