20489938

素因数分解:

$2^1\times 7^2\times {\mathrm{419}}^1\times {\mathrm{499}}^1$

素因数の和:934

約数の個数: 24

約数和(自身を含む): 35910000

約数和(自身を除く): 15420062

約数列:

[1, 2, 7, 14, 49, 98, 419, 499, 838, 998, 2933, 3493, 5866, 6986, 20531, 24451, 41062, 48902, 209081, 418162, 1463567, 2927134, 10244969, 20489938]

約数ペア:

[(1, 20489938), (2, 10244969), (7, 2927134), (14, 1463567), (49, 418162), (98, 209081), (419, 48902), (499, 41062), (838, 24451), (998, 20531), (2933, 6986), (3493, 5866)]