28259019

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{211}}^1\times {\mathrm{647}}^1$

素因数の和:887

約数の個数: 24

約数和(自身を含む): 42861312

約数和(自身を除く): 14602293

約数列:

[1, 3, 9, 23, 69, 207, 211, 633, 647, 1899, 1941, 4853, 5823, 14559, 14881, 43677, 44643, 133929, 136517, 409551, 1228653, 3139891, 9419673, 28259019]

約数ペア:

[(1, 28259019), (3, 9419673), (9, 3139891), (23, 1228653), (69, 409551), (207, 136517), (211, 133929), (633, 44643), (647, 43677), (1899, 14881), (1941, 14559), (4853, 5823)]