21242639

素因数分解:

${\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{449}}^1$

素因数の和:511

約数の個数: 24

約数和(自身を含む): 25855200

約数和(自身を除く): 4612561

約数列:

[1, 11, 17, 23, 121, 187, 253, 391, 449, 2057, 2783, 4301, 4939, 7633, 10327, 47311, 54329, 83963, 113597, 175559, 923593, 1249567, 1931149, 21242639]

約数ペア:

[(1, 21242639), (11, 1931149), (17, 1249567), (23, 923593), (121, 175559), (187, 113597), (253, 83963), (391, 54329), (449, 47311), (2057, 10327), (2783, 7633), (4301, 4939)]