20782545

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4603}}^1$

素因数の和:4661

約数の個数: 32

約数和(自身を含む): 38894592

約数和(自身を除く): 18112047

約数列:

[1, 3, 5, 7, 15, 21, 35, 43, 105, 129, 215, 301, 645, 903, 1505, 4515, 4603, 13809, 23015, 32221, 69045, 96663, 161105, 197929, 483315, 593787, 989645, 1385503, 2968935, 4156509, 6927515, 20782545]

約数ペア:

[(1, 20782545), (3, 6927515), (5, 4156509), (7, 2968935), (15, 1385503), (21, 989645), (35, 593787), (43, 483315), (105, 197929), (129, 161105), (215, 96663), (301, 69045), (645, 32221), (903, 23015), (1505, 13809), (4515, 4603)]