21449516

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{487489}}^1$

素因数の和:487504

約数の個数: 12

約数和(自身を含む): 40949160

約数和(自身を除く): 19499644

約数列:

[1, 2, 4, 11, 22, 44, 487489, 974978, 1949956, 5362379, 10724758, 21449516]

約数ペア:

[(1, 21449516), (2, 10724758), (4, 5362379), (11, 1949956), (22, 974978), (44, 487489)]