20400842

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{12043}}^1$

素因数の和:12074

約数の個数: 24

約数和(自身を含む): 38444448

約数和(自身を除く): 18043606

約数列:

[1, 2, 7, 11, 14, 22, 77, 121, 154, 242, 847, 1694, 12043, 24086, 84301, 132473, 168602, 264946, 927311, 1457203, 1854622, 2914406, 10200421, 20400842]

約数ペア:

[(1, 20400842), (2, 10200421), (7, 2914406), (11, 1854622), (14, 1457203), (22, 927311), (77, 264946), (121, 168602), (154, 132473), (242, 84301), (847, 24086), (1694, 12043)]