21493076

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{661}}^1\times {\mathrm{739}}^1$

素因数の和:1415

約数の個数: 24

約数和(自身を含む): 41149920

約数和(自身を除く): 19656844

約数列:

[1, 2, 4, 11, 22, 44, 661, 739, 1322, 1478, 2644, 2956, 7271, 8129, 14542, 16258, 29084, 32516, 488479, 976958, 1953916, 5373269, 10746538, 21493076]

約数ペア:

[(1, 21493076), (2, 10746538), (4, 5373269), (11, 1953916), (22, 976958), (44, 488479), (661, 32516), (739, 29084), (1322, 16258), (1478, 14542), (2644, 8129), (2956, 7271)]