20543139

素因数分解:

$3^4\times {\mathrm{127}}^1\times {\mathrm{1997}}^1$

素因数の和:2136

約数の個数: 20

約数和(自身を含む): 30945024

約数和(自身を除く): 10401885

約数列:

[1, 3, 9, 27, 81, 127, 381, 1143, 1997, 3429, 5991, 10287, 17973, 53919, 161757, 253619, 760857, 2282571, 6847713, 20543139]

約数ペア:

[(1, 20543139), (3, 6847713), (9, 2282571), (27, 760857), (81, 253619), (127, 161757), (381, 53919), (1143, 17973), (1997, 10287), (3429, 5991)]