21080191

素因数分解:

${\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{43}}^1\times {\mathrm{1087}}^1$

素因数の和:1182

約数の個数: 16

約数和(自身を含む): 24127488

約数和(自身を除く): 3047297

約数列:

[1, 11, 41, 43, 451, 473, 1087, 1763, 11957, 19393, 44567, 46741, 490237, 514151, 1916381, 21080191]

約数ペア:

[(1, 21080191), (11, 1916381), (41, 514151), (43, 490237), (451, 46741), (473, 44567), (1087, 19393), (1763, 11957)]