205359

素因数分解:

$3^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{127}}^1$

素因数の和:155

約数の個数: 24

約数和(自身を含む): 350208

約数和(自身を除く): 144849

約数列:

[1, 3, 7, 11, 21, 33, 49, 77, 127, 147, 231, 381, 539, 889, 1397, 1617, 2667, 4191, 6223, 9779, 18669, 29337, 68453, 205359]

約数ペア:

[(1, 205359), (3, 68453), (7, 29337), (11, 18669), (21, 9779), (33, 6223), (49, 4191), (77, 2667), (127, 1617), (147, 1397), (231, 889), (381, 539)]