20545909

素因数分解:

${\mathrm{47}}^2\times {\mathrm{71}}^1\times {\mathrm{131}}^1$

素因数の和:296

約数の個数: 12

約数和(自身を含む): 21450528

約数和(自身を除く): 904619

約数列:

[1, 47, 71, 131, 2209, 3337, 6157, 9301, 156839, 289379, 437147, 20545909]

約数ペア:

[(1, 20545909), (47, 437147), (71, 289379), (131, 156839), (2209, 9301), (3337, 6157)]