199907903

素因数分解:

${\mathrm{13}}^2\times {\mathrm{43}}^1\times {\mathrm{27509}}^1$

素因数の和:27578

約数の個数: 12

約数和(自身を含む): 221510520

約数和(自身を除く): 21602617

約数列:

[1, 13, 43, 169, 559, 7267, 27509, 357617, 1182887, 4649021, 15377531, 199907903]

約数ペア:

[(1, 199907903), (13, 15377531), (43, 4649021), (169, 1182887), (559, 357617), (7267, 27509)]