18921380

素因数分解:

$2^2\times 5^1\times {\mathrm{283}}^1\times {\mathrm{3343}}^1$

素因数の和:3635

約数の個数: 24

約数和(自身を含む): 39887232

約数和(自身を除く): 20965852

約数列:

[1, 2, 4, 5, 10, 20, 283, 566, 1132, 1415, 2830, 3343, 5660, 6686, 13372, 16715, 33430, 66860, 946069, 1892138, 3784276, 4730345, 9460690, 18921380]

約数ペア:

[(1, 18921380), (2, 9460690), (4, 4730345), (5, 3784276), (10, 1892138), (20, 946069), (283, 66860), (566, 33430), (1132, 16715), (1415, 13372), (2830, 6686), (3343, 5660)]