212219781

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{71}}^1\times {\mathrm{43319}}^1$

素因数の和:43416

約数の個数: 16

約数和(自身を含む): 299427840

約数和(自身を除く): 87208059

約数列:

[1, 3, 23, 69, 71, 213, 1633, 4899, 43319, 129957, 996337, 2989011, 3075649, 9226947, 70739927, 212219781]

約数ペア:

[(1, 212219781), (3, 70739927), (23, 9226947), (69, 3075649), (71, 2989011), (213, 996337), (1633, 129957), (4899, 43319)]