20898129

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{23143}}^1$

素因数の和:23196

約数の個数: 16

約数和(自身を含む): 32586752

約数和(自身を除く): 11688623

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 23143, 69429, 162001, 486003, 995149, 2985447, 6966043, 20898129]

約数ペア:

[(1, 20898129), (3, 6966043), (7, 2985447), (21, 995149), (43, 486003), (129, 162001), (301, 69429), (903, 23143)]