16920887

素因数分解:

${\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{139}}^1\times {\mathrm{149}}^1$

素因数の和:350

約数の個数: 16

約数和(自身を含む): 18480000

約数和(自身を除く): 1559113

約数列:

[1, 19, 43, 139, 149, 817, 2641, 2831, 5977, 6407, 20711, 113563, 121733, 393509, 890573, 16920887]

約数ペア:

[(1, 16920887), (19, 890573), (43, 393509), (139, 121733), (149, 113563), (817, 20711), (2641, 6407), (2831, 5977)]