21457624

素因数分解:

$2^3\times {\mathrm{1609}}^1\times {\mathrm{1667}}^1$

素因数の和:3282

約数の個数: 16

約数和(自身を含む): 40282200

約数和(自身を除く): 18824576

約数列:

[1, 2, 4, 8, 1609, 1667, 3218, 3334, 6436, 6668, 12872, 13336, 2682203, 5364406, 10728812, 21457624]

約数ペア:

[(1, 21457624), (2, 10728812), (4, 5364406), (8, 2682203), (1609, 13336), (1667, 12872), (3218, 6668), (3334, 6436)]