20427156

素因数分解:

$2^2\times 3^2\times {\mathrm{107}}^1\times {\mathrm{5303}}^1$

素因数の和:5420

約数の個数: 36

約数和(自身を含む): 52127712

約数和(自身を除く): 31700556

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 107, 214, 321, 428, 642, 963, 1284, 1926, 3852, 5303, 10606, 15909, 21212, 31818, 47727, 63636, 95454, 190908, 567421, 1134842, 1702263, 2269684, 3404526, 5106789, 6809052, 10213578, 20427156]

約数ペア:

[(1, 20427156), (2, 10213578), (3, 6809052), (4, 5106789), (6, 3404526), (9, 2269684), (12, 1702263), (18, 1134842), (36, 567421), (107, 190908), (214, 95454), (321, 63636), (428, 47727), (642, 31818), (963, 21212), (1284, 15909), (1926, 10606), (3852, 5303)]