20808228

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{247717}}^1$

素因数の和:247731

約数の個数: 24

約数和(自身を含む): 55488832

約数和(自身を除く): 34680604

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 247717, 495434, 743151, 990868, 1486302, 1734019, 2972604, 3468038, 5202057, 6936076, 10404114, 20808228]

約数ペア:

[(1, 20808228), (2, 10404114), (3, 6936076), (4, 5202057), (6, 3468038), (7, 2972604), (12, 1734019), (14, 1486302), (21, 990868), (28, 743151), (42, 495434), (84, 247717)]