217831790

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{1980289}}^1$

素因数の和:1980307

約数の個数: 16

約数和(自身を含む): 427742640

約数和(自身を除く): 209910850

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 1980289, 3960578, 9901445, 19802890, 21783179, 43566358, 108915895, 217831790]

約数ペア:

[(1, 217831790), (2, 108915895), (5, 43566358), (10, 21783179), (11, 19802890), (22, 9901445), (55, 3960578), (110, 1980289)]