25640001

素因数分解:

$3^2\times {\mathrm{37}}^2\times {\mathrm{2081}}^1$

素因数の和:2161

約数の個数: 18

約数和(自身を含む): 38081862

約数和(自身を除く): 12441861

約数列:

[1, 3, 9, 37, 111, 333, 1369, 2081, 4107, 6243, 12321, 18729, 76997, 230991, 692973, 2848889, 8546667, 25640001]

約数ペア:

[(1, 25640001), (3, 8546667), (9, 2848889), (37, 692973), (111, 230991), (333, 76997), (1369, 18729), (2081, 12321), (4107, 6243)]