219874319

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{593}}^1$

素因数の和:684

約数の個数: 32

約数和(自身を含む): 273715200

約数和(自身を除く): 53840881

約数列:

[1, 7, 23, 47, 49, 161, 329, 343, 593, 1081, 1127, 2303, 4151, 7567, 7889, 13639, 16121, 27871, 29057, 52969, 95473, 195097, 203399, 370783, 641033, 668311, 1365679, 4487231, 4678177, 9559753, 31410617, 219874319]

約数ペア:

[(1, 219874319), (7, 31410617), (23, 9559753), (47, 4678177), (49, 4487231), (161, 1365679), (329, 668311), (343, 641033), (593, 370783), (1081, 203399), (1127, 195097), (2303, 95473), (4151, 52969), (7567, 29057), (7889, 27871), (13639, 16121)]