22121210

素因数分解:

$2^1\times 5^1\times {\mathrm{439}}^1\times {\mathrm{5039}}^1$

素因数の和:5485

約数の個数: 16

約数和(自身を含む): 39916800

約数和(自身を除く): 17795590

約数列:

[1, 2, 5, 10, 439, 878, 2195, 4390, 5039, 10078, 25195, 50390, 2212121, 4424242, 11060605, 22121210]

約数ペア:

[(1, 22121210), (2, 11060605), (5, 4424242), (10, 2212121), (439, 50390), (878, 25195), (2195, 10078), (4390, 5039)]