20513451

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{22717}}^1$

素因数の和:22770

約数の個数: 16

約数和(自身を含む): 31986944

約数和(自身を除く): 11473493

約数列:

[1, 3, 7, 21, 43, 129, 301, 903, 22717, 68151, 159019, 477057, 976831, 2930493, 6837817, 20513451]

約数ペア:

[(1, 20513451), (3, 6837817), (7, 2930493), (21, 976831), (43, 477057), (129, 159019), (301, 68151), (903, 22717)]