20404538

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{3581}}^1$

素因数の和:3638

約数の個数: 32

約数和(自身を含む): 39201408

約数和(自身を除く): 18796870

約数列:

[1, 2, 7, 11, 14, 22, 37, 74, 77, 154, 259, 407, 518, 814, 2849, 3581, 5698, 7162, 25067, 39391, 50134, 78782, 132497, 264994, 275737, 551474, 927479, 1457467, 1854958, 2914934, 10202269, 20404538]

約数ペア:

[(1, 20404538), (2, 10202269), (7, 2914934), (11, 1854958), (14, 1457467), (22, 927479), (37, 551474), (74, 275737), (77, 264994), (154, 132497), (259, 78782), (407, 50134), (518, 39391), (814, 25067), (2849, 7162), (3581, 5698)]