20948981

素因数分解:

${\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{157}}^1\times {\mathrm{167}}^1$

素因数の和:388

約数の個数: 16

約数和(自身を含む): 22934016

約数和(自身を除く): 1985035

約数列:

[1, 17, 47, 157, 167, 799, 2669, 2839, 7379, 7849, 26219, 125443, 133433, 445723, 1232293, 20948981]

約数ペア:

[(1, 20948981), (17, 1232293), (47, 445723), (157, 133433), (167, 125443), (799, 26219), (2669, 7849), (2839, 7379)]