81156771

素因数分解:

$3^2\times {\mathrm{19}}^2\times {\mathrm{24979}}^1$

素因数の和:25023

約数の個数: 18

約数和(自身を含む): 123725940

約数和(自身を除く): 42569169

約数列:

[1, 3, 9, 19, 57, 171, 361, 1083, 3249, 24979, 74937, 224811, 474601, 1423803, 4271409, 9017419, 27052257, 81156771]

約数ペア:

[(1, 81156771), (3, 27052257), (9, 9017419), (19, 4271409), (57, 1423803), (171, 474601), (361, 224811), (1083, 74937), (3249, 24979)]