21494500

素因数分解:

$2^2\times 5^3\times {\mathrm{42989}}^1$

素因数の和:43008

約数の個数: 24

約数和(自身を含む): 46945080

約数和(自身を除く): 25450580

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 125, 250, 500, 42989, 85978, 171956, 214945, 429890, 859780, 1074725, 2149450, 4298900, 5373625, 10747250, 21494500]

約数ペア:

[(1, 21494500), (2, 10747250), (4, 5373625), (5, 4298900), (10, 2149450), (20, 1074725), (25, 859780), (50, 429890), (100, 214945), (125, 171956), (250, 85978), (500, 42989)]