21789922

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{677}}^1$

素因数の和:727

約数の個数: 48

約数和(自身を含む): 43283520

約数和(自身を除く): 21493598

約数列:

[1, 2, 7, 11, 14, 19, 22, 38, 77, 121, 133, 154, 209, 242, 266, 418, 677, 847, 1354, 1463, 1694, 2299, 2926, 4598, 4739, 7447, 9478, 12863, 14894, 16093, 25726, 32186, 52129, 81917, 90041, 104258, 141493, 163834, 180082, 282986, 573419, 990451, 1146838, 1556423, 1980902, 3112846, 10894961, 21789922]

約数ペア:

[(1, 21789922), (2, 10894961), (7, 3112846), (11, 1980902), (14, 1556423), (19, 1146838), (22, 990451), (38, 573419), (77, 282986), (121, 180082), (133, 163834), (154, 141493), (209, 104258), (242, 90041), (266, 81917), (418, 52129), (677, 32186), (847, 25726), (1354, 16093), (1463, 14894), (1694, 12863), (2299, 9478), (2926, 7447), (4598, 4739)]