25781889

素因数分解:

$3^1\times 7^2\times {\mathrm{127}}^1\times {\mathrm{1381}}^1$

素因数の和:1525

約数の個数: 24

約数和(自身を含む): 40332288

約数和(自身を除く): 14550399

約数列:

[1, 3, 7, 21, 49, 127, 147, 381, 889, 1381, 2667, 4143, 6223, 9667, 18669, 29001, 67669, 175387, 203007, 526161, 1227709, 3683127, 8593963, 25781889]

約数ペア:

[(1, 25781889), (3, 8593963), (7, 3683127), (21, 1227709), (49, 526161), (127, 203007), (147, 175387), (381, 67669), (889, 29001), (1381, 18669), (2667, 9667), (4143, 6223)]