21360036

素因数分解:

$2^2\times 3^1\times {\mathrm{1780003}}^1$

素因数の和:1780010

約数の個数: 12

約数和(自身を含む): 49840112

約数和(自身を除く): 28480076

約数列:

[1, 2, 3, 4, 6, 12, 1780003, 3560006, 5340009, 7120012, 10680018, 21360036]

約数ペア:

[(1, 21360036), (2, 10680018), (3, 7120012), (4, 5340009), (6, 3560006), (12, 1780003)]