205909767

素因数分解:

$3^2\times 7^1\times {\mathrm{137}}^1\times {\mathrm{23857}}^1$

素因数の和:24007

約数の個数: 24

約数和(自身を含む): 342410016

約数和(自身を除く): 136500249

約数列:

[1, 3, 7, 9, 21, 63, 137, 411, 959, 1233, 2877, 8631, 23857, 71571, 166999, 214713, 500997, 1502991, 3268409, 9805227, 22878863, 29415681, 68636589, 205909767]

約数ペア:

[(1, 205909767), (3, 68636589), (7, 29415681), (9, 22878863), (21, 9805227), (63, 3268409), (137, 1502991), (411, 500997), (959, 214713), (1233, 166999), (2877, 71571), (8631, 23857)]