155287287

素因数分解:

$3^4\times {\mathrm{157}}^1\times {\mathrm{12211}}^1$

素因数の和:12380

約数の個数: 20

約数和(自身を含む): 233469016

約数和(自身を除く): 78181729

約数列:

[1, 3, 9, 27, 81, 157, 471, 1413, 4239, 12211, 12717, 36633, 109899, 329697, 989091, 1917127, 5751381, 17254143, 51762429, 155287287]

約数ペア:

[(1, 155287287), (3, 51762429), (9, 17254143), (27, 5751381), (81, 1917127), (157, 989091), (471, 329697), (1413, 109899), (4239, 36633), (12211, 12717)]