21713288

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{199}}^1\times {\mathrm{593}}^1$

素因数の和:821

約数の個数: 32

約数和(自身を含む): 42768000

約数和(自身を除く): 21054712

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 199, 398, 593, 796, 1186, 1592, 2372, 4577, 4744, 9154, 13639, 18308, 27278, 36616, 54556, 109112, 118007, 236014, 472028, 944056, 2714161, 5428322, 10856644, 21713288]

約数ペア:

[(1, 21713288), (2, 10856644), (4, 5428322), (8, 2714161), (23, 944056), (46, 472028), (92, 236014), (184, 118007), (199, 109112), (398, 54556), (593, 36616), (796, 27278), (1186, 18308), (1592, 13639), (2372, 9154), (4577, 4744)]