18789883

素因数分解:

$7^3\times {\mathrm{29}}^1\times {\mathrm{1889}}^1$

素因数の和:1939

約数の個数: 16

約数和(自身を含む): 22680000

約数和(自身を除く): 3890117

約数列:

[1, 7, 29, 49, 203, 343, 1421, 1889, 9947, 13223, 54781, 92561, 383467, 647927, 2684269, 18789883]

約数ペア:

[(1, 18789883), (7, 2684269), (29, 647927), (49, 383467), (203, 92561), (343, 54781), (1421, 13223), (1889, 9947)]