199420281

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{647}}^1\times {\mathrm{1489}}^1$

素因数の和:2165

約数の個数: 24

約数和(自身を含む): 301242240

約数和(自身を除く): 101821959

約数列:

[1, 3, 9, 23, 69, 207, 647, 1489, 1941, 4467, 5823, 13401, 14881, 34247, 44643, 102741, 133929, 308223, 963383, 2890149, 8670447, 22157809, 66473427, 199420281]

約数ペア:

[(1, 199420281), (3, 66473427), (9, 22157809), (23, 8670447), (69, 2890149), (207, 963383), (647, 308223), (1489, 133929), (1941, 102741), (4467, 44643), (5823, 34247), (13401, 14881)]