81278157

素因数分解:

$3^1\times {\mathrm{163}}^1\times {\mathrm{347}}^1\times {\mathrm{479}}^1$

素因数の和:992

約数の個数: 16

約数和(自身を含む): 109578240

約数和(自身を除く): 28300083

約数列:

[1, 3, 163, 347, 479, 489, 1041, 1437, 56561, 78077, 166213, 169683, 234231, 498639, 27092719, 81278157]

約数ペア:

[(1, 81278157), (3, 27092719), (163, 498639), (347, 234231), (479, 169683), (489, 166213), (1041, 78077), (1437, 56561)]