19989229

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{151}}^1\times {\mathrm{599}}^1$

素因数の和:780

約数の個数: 16

約数和(自身を含む): 22982400

約数和(自身を除く): 2993171

約数列:

[1, 13, 17, 151, 221, 599, 1963, 2567, 7787, 10183, 33371, 90449, 132379, 1175837, 1537633, 19989229]

約数ペア:

[(1, 19989229), (13, 1537633), (17, 1175837), (151, 132379), (221, 90449), (599, 33371), (1963, 10183), (2567, 7787)]