138888927

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{691}}^1\times {\mathrm{971}}^1$

素因数の和:1691

約数の個数: 24

約数和(自身を含む): 209858688

約数和(自身を除く): 70969761

約数列:

[1, 3, 9, 23, 69, 207, 691, 971, 2073, 2913, 6219, 8739, 15893, 22333, 47679, 66999, 143037, 200997, 670961, 2012883, 6038649, 15432103, 46296309, 138888927]

約数ペア:

[(1, 138888927), (3, 46296309), (9, 15432103), (23, 6038649), (69, 2012883), (207, 670961), (691, 200997), (971, 143037), (2073, 66999), (2913, 47679), (6219, 22333), (8739, 15893)]