221660137

素因数分解:

${\mathrm{19}}^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{683}}^1$

素因数の和:781

約数の個数: 24

約数和(自身を含む): 250179840

約数和(自身を除く): 28519703

約数列:

[1, 19, 29, 31, 361, 551, 589, 683, 899, 10469, 11191, 12977, 17081, 19807, 21173, 246563, 324539, 376333, 402287, 614017, 7150327, 7643453, 11666323, 221660137]

約数ペア:

[(1, 221660137), (19, 11666323), (29, 7643453), (31, 7150327), (361, 614017), (551, 402287), (589, 376333), (683, 324539), (899, 246563), (10469, 21173), (11191, 19807), (12977, 17081)]