20028939

素因数分解:

$3^1\times 7^1\times {\mathrm{457}}^1\times {\mathrm{2087}}^1$

素因数の和:2554

約数の個数: 16

約数和(自身を含む): 30601728

約数和(自身を除く): 10572789

約数列:

[1, 3, 7, 21, 457, 1371, 2087, 3199, 6261, 9597, 14609, 43827, 953759, 2861277, 6676313, 20028939]

約数ペア:

[(1, 20028939), (3, 6676313), (7, 2861277), (21, 953759), (457, 43827), (1371, 14609), (2087, 9597), (3199, 6261)]