20490668

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{4801}}^1$

素因数の和:4913

約数の個数: 24

約数和(自身を含む): 39530064

約数和(自身を除く): 19039396

約数列:

[1, 2, 4, 11, 22, 44, 97, 194, 388, 1067, 2134, 4268, 4801, 9602, 19204, 52811, 105622, 211244, 465697, 931394, 1862788, 5122667, 10245334, 20490668]

約数ペア:

[(1, 20490668), (2, 10245334), (4, 5122667), (11, 1862788), (22, 931394), (44, 465697), (97, 211244), (194, 105622), (388, 52811), (1067, 19204), (2134, 9602), (4268, 4801)]