18885559

素因数分解:

$7^1\times {\mathrm{11}}^3\times {\mathrm{2027}}^1$

素因数の和:2067

約数の個数: 16

約数和(自身を含む): 23751936

約数和(自身を除く): 4866377

約数列:

[1, 7, 11, 77, 121, 847, 1331, 2027, 9317, 14189, 22297, 156079, 245267, 1716869, 2697937, 18885559]

約数ペア:

[(1, 18885559), (7, 2697937), (11, 1716869), (77, 245267), (121, 156079), (847, 22297), (1331, 14189), (2027, 9317)]