20376421

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{673}}^1$

素因数の和:840

約数の個数: 16

約数和(自身を含む): 23439024

約数和(自身を除く): 3062603

約数列:

[1, 13, 17, 137, 221, 673, 1781, 2329, 8749, 11441, 30277, 92201, 148733, 1198613, 1567417, 20376421]

約数ペア:

[(1, 20376421), (13, 1567417), (17, 1198613), (137, 148733), (221, 92201), (673, 30277), (1781, 11441), (2329, 8749)]