21809074

素因数分解:

$2^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{163}}^1\times {\mathrm{503}}^1$

素因数の和:694

約数の個数: 32

約数和(自身を含む): 39674880

約数和(自身を除く): 17865806

約数列:

[1, 2, 7, 14, 19, 38, 133, 163, 266, 326, 503, 1006, 1141, 2282, 3097, 3521, 6194, 7042, 9557, 19114, 21679, 43358, 66899, 81989, 133798, 163978, 573923, 1147846, 1557791, 3115582, 10904537, 21809074]

約数ペア:

[(1, 21809074), (2, 10904537), (7, 3115582), (14, 1557791), (19, 1147846), (38, 573923), (133, 163978), (163, 133798), (266, 81989), (326, 66899), (503, 43358), (1006, 21679), (1141, 19114), (2282, 9557), (3097, 7042), (3521, 6194)]