20988492

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{249863}}^1$

素因数の和:249877

約数の個数: 24

約数和(自身を含む): 55969536

約数和(自身を除く): 34981044

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 249863, 499726, 749589, 999452, 1499178, 1749041, 2998356, 3498082, 5247123, 6996164, 10494246, 20988492]

約数ペア:

[(1, 20988492), (2, 10494246), (3, 6996164), (4, 5247123), (6, 3498082), (7, 2998356), (12, 1749041), (14, 1499178), (21, 999452), (28, 749589), (42, 499726), (84, 249863)]