21431896

素因数分解:

$2^3\times {\mathrm{487}}^1\times {\mathrm{5501}}^1$

素因数の和:5994

約数の個数: 16

約数和(自身を含む): 40274640

約数和(自身を除く): 18842744

約数列:

[1, 2, 4, 8, 487, 974, 1948, 3896, 5501, 11002, 22004, 44008, 2678987, 5357974, 10715948, 21431896]

約数ペア:

[(1, 21431896), (2, 10715948), (4, 5357974), (8, 2678987), (487, 44008), (974, 22004), (1948, 11002), (3896, 5501)]