1981681

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{113}}^1$

素因数の和:216

約数の個数: 16

約数和(自身を含む): 2298240

約数和(自身を除く): 316559

約数列:

[1, 13, 19, 71, 113, 247, 923, 1349, 1469, 2147, 8023, 17537, 27911, 104299, 152437, 1981681]

約数ペア:

[(1, 1981681), (13, 152437), (19, 104299), (71, 27911), (113, 17537), (247, 8023), (923, 2147), (1349, 1469)]