21075153

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{27767}}^1$

素因数の和:27804

約数の個数: 16

約数和(自身を含む): 31988736

約数和(自身を除く): 10913583

約数列:

[1, 3, 11, 23, 33, 69, 253, 759, 27767, 83301, 305437, 638641, 916311, 1915923, 7025051, 21075153]

約数ペア:

[(1, 21075153), (3, 7025051), (11, 1915923), (23, 916311), (33, 638641), (69, 305437), (253, 83301), (759, 27767)]