20834919

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{7691}}^1$

素因数の和:7747

約数の個数: 24

約数和(自身を含む): 35198592

約数和(自身を除く): 14363673

約数列:

[1, 3, 7, 9, 21, 43, 63, 129, 301, 387, 903, 2709, 7691, 23073, 53837, 69219, 161511, 330713, 484533, 992139, 2314991, 2976417, 6944973, 20834919]

約数ペア:

[(1, 20834919), (3, 6944973), (7, 2976417), (9, 2314991), (21, 992139), (43, 484533), (63, 330713), (129, 161511), (301, 69219), (387, 53837), (903, 23073), (2709, 7691)]