20642259

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{13309}}^1$

素因数の和:13370

約数の個数: 16

約数和(自身を含む): 30666240

約数和(自身を除く): 10023981

約数列:

[1, 3, 11, 33, 47, 141, 517, 1551, 13309, 39927, 146399, 439197, 625523, 1876569, 6880753, 20642259]

約数ペア:

[(1, 20642259), (3, 6880753), (11, 1876569), (33, 625523), (47, 439197), (141, 146399), (517, 39927), (1551, 13309)]