20807248

素因数分解:

$2^4\times 7^1\times {\mathrm{11}}^1\times {\mathrm{16889}}^1$

素因数の和:16915

約数の個数: 40

約数和(自身を含む): 50264640

約数和(自身を除く): 29457392

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 22, 28, 44, 56, 77, 88, 112, 154, 176, 308, 616, 1232, 16889, 33778, 67556, 118223, 135112, 185779, 236446, 270224, 371558, 472892, 743116, 945784, 1300453, 1486232, 1891568, 2600906, 2972464, 5201812, 10403624, 20807248]

約数ペア:

[(1, 20807248), (2, 10403624), (4, 5201812), (7, 2972464), (8, 2600906), (11, 1891568), (14, 1486232), (16, 1300453), (22, 945784), (28, 743116), (44, 472892), (56, 371558), (77, 270224), (88, 236446), (112, 185779), (154, 135112), (176, 118223), (308, 67556), (616, 33778), (1232, 16889)]