21496088

素因数分解:

$2^3\times {\mathrm{509}}^1\times {\mathrm{5279}}^1$

素因数の和:5794

約数の個数: 16

約数和(自身を含む): 40392000

約数和(自身を除く): 18895912

約数列:

[1, 2, 4, 8, 509, 1018, 2036, 4072, 5279, 10558, 21116, 42232, 2687011, 5374022, 10748044, 21496088]

約数ペア:

[(1, 21496088), (2, 10748044), (4, 5374022), (8, 2687011), (509, 42232), (1018, 21116), (2036, 10558), (4072, 5279)]