21109430

素因数分解:

$2^1\times 5^1\times {\mathrm{919}}^1\times {\mathrm{2297}}^1$

素因数の和:3223

約数の個数: 16

約数和(自身を含む): 38054880

約数和(自身を除く): 16945450

約数列:

[1, 2, 5, 10, 919, 1838, 2297, 4594, 4595, 9190, 11485, 22970, 2110943, 4221886, 10554715, 21109430]

約数ペア:

[(1, 21109430), (2, 10554715), (5, 4221886), (10, 2110943), (919, 22970), (1838, 11485), (2297, 9190), (4594, 4595)]