21133143

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{1877}}^1$

素因数の和:2028

約数の個数: 20

約数和(自身を含む): 31813320

約数和(自身を除く): 10680177

約数列:

[1, 3, 9, 27, 81, 139, 417, 1251, 1877, 3753, 5631, 11259, 16893, 50679, 152037, 260903, 782709, 2348127, 7044381, 21133143]

約数ペア:

[(1, 21133143), (3, 7044381), (9, 2348127), (27, 782709), (81, 260903), (139, 152037), (417, 50679), (1251, 16893), (1877, 11259), (3753, 5631)]