20217164

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{41771}}^1$

素因数の和:41797

約数の個数: 18

約数和(自身を含む): 38889732

約数和(自身を除く): 18672568

約数列:

[1, 2, 4, 11, 22, 44, 121, 242, 484, 41771, 83542, 167084, 459481, 918962, 1837924, 5054291, 10108582, 20217164]

約数ペア:

[(1, 20217164), (2, 10108582), (4, 5054291), (11, 1837924), (22, 918962), (44, 459481), (121, 167084), (242, 83542), (484, 41771)]