18891073

素因数分解:

${\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{311}}^1$

素因数の和:492

約数の個数: 16

約数和(自身を含む): 20966400

約数和(自身を除く): 2075327

約数列:

[1, 19, 23, 139, 311, 437, 2641, 3197, 5909, 7153, 43229, 60743, 135907, 821351, 994267, 18891073]

約数ペア:

[(1, 18891073), (19, 994267), (23, 821351), (139, 135907), (311, 60743), (437, 43229), (2641, 7153), (3197, 5909)]