18279961

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{433}}^1$

素因数の和:640

約数の個数: 16

約数和(自身を含む): 21637504

約数和(自身を除く): 3357543

約数列:

[1, 7, 37, 163, 259, 433, 1141, 3031, 6031, 16021, 42217, 70579, 112147, 494053, 2611423, 18279961]

約数ペア:

[(1, 18279961), (7, 2611423), (37, 494053), (163, 112147), (259, 70579), (433, 42217), (1141, 16021), (3031, 6031)]