21181286

素因数分解:

$2^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{88997}}^1$

素因数の和:89023

約数の個数: 16

約数和(自身を含む): 38447136

約数和(自身を除く): 17265850

約数列:

[1, 2, 7, 14, 17, 34, 119, 238, 88997, 177994, 622979, 1245958, 1512949, 3025898, 10590643, 21181286]

約数ペア:

[(1, 21181286), (2, 10590643), (7, 3025898), (14, 1512949), (17, 1245958), (34, 622979), (119, 177994), (238, 88997)]