81998289

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{179}}^1\times {\mathrm{2213}}^1$

素因数の和:2421

約数の個数: 24

約数和(自身を含む): 124338240

約数和(自身を除く): 42339951

約数列:

[1, 3, 9, 23, 69, 179, 207, 537, 1611, 2213, 4117, 6639, 12351, 19917, 37053, 50899, 152697, 396127, 458091, 1188381, 3565143, 9110921, 27332763, 81998289]

約数ペア:

[(1, 81998289), (3, 27332763), (9, 9110921), (23, 3565143), (69, 1188381), (179, 458091), (207, 396127), (537, 152697), (1611, 50899), (2213, 37053), (4117, 19917), (6639, 12351)]