20001723

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{17971}}^1$

素因数の和:18034

約数の個数: 16

約数和(自身を含む): 31055616

約数和(自身を除く): 11053893

約数列:

[1, 3, 7, 21, 53, 159, 371, 1113, 17971, 53913, 125797, 377391, 952463, 2857389, 6667241, 20001723]

約数ペア:

[(1, 20001723), (3, 6667241), (7, 2857389), (21, 952463), (53, 377391), (159, 125797), (371, 53913), (1113, 17971)]