21340165

素因数分解:

$5^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{5039}}^1$

素因数の和:5073

約数の個数: 24

約数和(自身を含む): 32175360

約数和(自身を除く): 10835195

約数列:

[1, 5, 7, 11, 35, 55, 77, 121, 385, 605, 847, 4235, 5039, 25195, 35273, 55429, 176365, 277145, 388003, 609719, 1940015, 3048595, 4268033, 21340165]

約数ペア:

[(1, 21340165), (5, 4268033), (7, 3048595), (11, 1940015), (35, 609719), (55, 388003), (77, 277145), (121, 176365), (385, 55429), (605, 35273), (847, 25195), (4235, 5039)]