20217976

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{133013}}^1$

素因数の和:133038

約数の個数: 16

約数和(自身を含む): 39904200

約数和(自身を除く): 19686224

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 133013, 266026, 532052, 1064104, 2527247, 5054494, 10108988, 20217976]

約数ペア:

[(1, 20217976), (2, 10108988), (4, 5054494), (8, 2527247), (19, 1064104), (38, 532052), (76, 266026), (152, 133013)]