20718564

素因数分解:

$2^2\times 3^1\times {\mathrm{1307}}^1\times {\mathrm{1321}}^1$

素因数の和:2635

約数の個数: 24

約数和(自身を含む): 48416928

約数和(自身を除く): 27698364

約数列:

[1, 2, 3, 4, 6, 12, 1307, 1321, 2614, 2642, 3921, 3963, 5228, 5284, 7842, 7926, 15684, 15852, 1726547, 3453094, 5179641, 6906188, 10359282, 20718564]

約数ペア:

[(1, 20718564), (2, 10359282), (3, 6906188), (4, 5179641), (6, 3453094), (12, 1726547), (1307, 15852), (1321, 15684), (2614, 7926), (2642, 7842), (3921, 5284), (3963, 5228)]