21280878

素因数分解:

$2^1\times 3^2\times {\mathrm{53}}^1\times {\mathrm{22307}}^1$

素因数の和:22368

約数の個数: 24

約数和(自身を含む): 46980648

約数和(自身を除く): 25699770

約数列:

[1, 2, 3, 6, 9, 18, 53, 106, 159, 318, 477, 954, 22307, 44614, 66921, 133842, 200763, 401526, 1182271, 2364542, 3546813, 7093626, 10640439, 21280878]

約数ペア:

[(1, 21280878), (2, 10640439), (3, 7093626), (6, 3546813), (9, 2364542), (18, 1182271), (53, 401526), (106, 200763), (159, 133842), (318, 66921), (477, 44614), (954, 22307)]