209985153

素因数分解:

$3^1\times 7^1\times {\mathrm{643}}^1\times {\mathrm{15551}}^1$

素因数の和:16204

約数の個数: 16

約数和(自身を含む): 320495616

約数和(自身を除く): 110510463

約数列:

[1, 3, 7, 21, 643, 1929, 4501, 13503, 15551, 46653, 108857, 326571, 9999293, 29997879, 69995051, 209985153]

約数ペア:

[(1, 209985153), (3, 69995051), (7, 29997879), (21, 9999293), (643, 326571), (1929, 108857), (4501, 46653), (13503, 15551)]