51988311

素因数分解:

$3^4\times {\mathrm{661}}^1\times {\mathrm{971}}^1$

素因数の和:1644

約数の個数: 20

約数和(自身を含む): 77859144

約数和(自身を除く): 25870833

約数列:

[1, 3, 9, 27, 81, 661, 971, 1983, 2913, 5949, 8739, 17847, 26217, 53541, 78651, 641831, 1925493, 5776479, 17329437, 51988311]

約数ペア:

[(1, 51988311), (3, 17329437), (9, 5776479), (27, 1925493), (81, 641831), (661, 78651), (971, 53541), (1983, 26217), (2913, 17847), (5949, 8739)]