18979727

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{1787}}^1$

素因数の和:1862

約数の個数: 16

約数和(自身を含む): 22028160

約数和(自身を除く): 3048433

約数列:

[1, 13, 19, 43, 247, 559, 817, 1787, 10621, 23231, 33953, 76841, 441389, 998933, 1459979, 18979727]

約数ペア:

[(1, 18979727), (13, 1459979), (19, 998933), (43, 441389), (247, 76841), (559, 33953), (817, 23231), (1787, 10621)]