20644141

素因数分解:

$7^3\times {\mathrm{139}}^1\times {\mathrm{433}}^1$

素因数の和:593

約数の個数: 16

約数和(自身を含む): 24304000

約数和(自身を除く): 3659859

約数列:

[1, 7, 49, 139, 343, 433, 973, 3031, 6811, 21217, 47677, 60187, 148519, 421309, 2949163, 20644141]

約数ペア:

[(1, 20644141), (7, 2949163), (49, 421309), (139, 148519), (343, 60187), (433, 47677), (973, 21217), (3031, 6811)]