201991777

素因数分解:

${\mathrm{13}}^1\times {\mathrm{211}}^2\times {\mathrm{349}}^1$

素因数の和:784

約数の個数: 12

約数和(自身を含む): 219191700

約数和(自身を除く): 17199923

約数列:

[1, 13, 211, 349, 2743, 4537, 44521, 73639, 578773, 957307, 15537829, 201991777]

約数ペア:

[(1, 201991777), (13, 15537829), (211, 957307), (349, 578773), (2743, 73639), (4537, 44521)]