20813763

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{9491}}^1$

素因数の和:9554

約数の個数: 16

約数和(自身を含む): 30070656

約数和(自身を除く): 9256893

約数列:

[1, 3, 17, 43, 51, 129, 731, 2193, 9491, 28473, 161347, 408113, 484041, 1224339, 6937921, 20813763]

約数ペア:

[(1, 20813763), (3, 6937921), (17, 1224339), (43, 484041), (51, 408113), (129, 161347), (731, 28473), (2193, 9491)]