19912445

素因数分解:

$5^1\times 7^1\times {\mathrm{139}}^1\times {\mathrm{4093}}^1$

素因数の和:4244

約数の個数: 16

約数和(自身を含む): 27511680

約数和(自身を除く): 7599235

約数列:

[1, 5, 7, 35, 139, 695, 973, 4093, 4865, 20465, 28651, 143255, 568927, 2844635, 3982489, 19912445]

約数ペア:

[(1, 19912445), (5, 3982489), (7, 2844635), (35, 568927), (139, 143255), (695, 28651), (973, 20465), (4093, 4865)]