208121421

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{43991}}^1$

素因数の和:44096

約数の個数: 16

約数和(自身を含む): 295626240

約数和(自身を除く): 87504819

約数列:

[1, 3, 19, 57, 83, 249, 1577, 4731, 43991, 131973, 835829, 2507487, 3651253, 10953759, 69373807, 208121421]

約数ペア:

[(1, 208121421), (3, 69373807), (19, 10953759), (57, 3651253), (83, 2507487), (249, 835829), (1577, 131973), (4731, 43991)]