20299255

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{211}}^1\times {\mathrm{271}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 24910848

約数和(自身を除く): 4611593

約数列:

[1, 5, 71, 211, 271, 355, 1055, 1355, 14981, 19241, 57181, 74905, 96205, 285905, 4059851, 20299255]

約数ペア:

[(1, 20299255), (5, 4059851), (71, 285905), (211, 96205), (271, 74905), (355, 57181), (1055, 19241), (1355, 14981)]