20720742

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{493351}}^1$

素因数の和:493363

約数の個数: 16

約数和(自身を含む): 47361792

約数和(自身を除く): 26641050

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 493351, 986702, 1480053, 2960106, 3453457, 6906914, 10360371, 20720742]

約数ペア:

[(1, 20720742), (2, 10360371), (3, 6906914), (6, 3453457), (7, 2960106), (14, 1480053), (21, 986702), (42, 493351)]