261640001

素因数分解:

$7^1\times {\mathrm{29}}^1\times {\mathrm{947}}^1\times {\mathrm{1361}}^1$

素因数の和:2344

約数の個数: 16

約数和(自身を含む): 309882240

約数和(自身を除く): 48242239

約数列:

[1, 7, 29, 203, 947, 1361, 6629, 9527, 27463, 39469, 192241, 276283, 1288867, 9022069, 37377143, 261640001]

約数ペア:

[(1, 261640001), (7, 37377143), (29, 9022069), (203, 1288867), (947, 276283), (1361, 192241), (6629, 39469), (9527, 27463)]