217516618

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{20903}}^1$

素因数の和:20970

約数の個数: 24

約数和(自身を含む): 366990624

約数和(自身を除く): 149474006

約数列:

[1, 2, 11, 22, 43, 86, 121, 242, 473, 946, 5203, 10406, 20903, 41806, 229933, 459866, 898829, 1797658, 2529263, 5058526, 9887119, 19774238, 108758309, 217516618]

約数ペア:

[(1, 217516618), (2, 108758309), (11, 19774238), (22, 9887119), (43, 5058526), (86, 2529263), (121, 1797658), (242, 898829), (473, 459866), (946, 229933), (5203, 41806), (10406, 20903)]