20757221

素因数分解:

${\mathrm{17}}^1\times {\mathrm{47}}^1\times {\mathrm{83}}^1\times {\mathrm{313}}^1$

素因数の和:460

約数の個数: 16

約数和(自身を含む): 22788864

約数和(自身を除く): 2031643

約数列:

[1, 17, 47, 83, 313, 799, 1411, 3901, 5321, 14711, 25979, 66317, 250087, 441643, 1221013, 20757221]

約数ペア:

[(1, 20757221), (17, 1221013), (47, 441643), (83, 250087), (313, 66317), (799, 25979), (1411, 14711), (3901, 5321)]