21395252

素因数分解:

$2^2\times {\mathrm{43}}^1\times {\mathrm{53}}^1\times {\mathrm{2347}}^1$

素因数の和:2447

約数の個数: 24

約数和(自身を含む): 39051936

約数和(自身を除く): 17656684

約数列:

[1, 2, 4, 43, 53, 86, 106, 172, 212, 2279, 2347, 4558, 4694, 9116, 9388, 100921, 124391, 201842, 248782, 403684, 497564, 5348813, 10697626, 21395252]

約数ペア:

[(1, 21395252), (2, 10697626), (4, 5348813), (43, 497564), (53, 403684), (86, 248782), (106, 201842), (172, 124391), (212, 100921), (2279, 9388), (2347, 9116), (4558, 4694)]