21900027

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{9371}}^1$

素因数の和:9434

約数の個数: 16

約数和(自身を含む): 31489920

約数和(自身を除く): 9589893

約数列:

[1, 3, 19, 41, 57, 123, 779, 2337, 9371, 28113, 178049, 384211, 534147, 1152633, 7300009, 21900027]

約数ペア:

[(1, 21900027), (3, 7300009), (19, 1152633), (41, 534147), (57, 384211), (123, 178049), (779, 28113), (2337, 9371)]