21209523459

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{751}}^1\times {\mathrm{553759}}^1$

素因数の和:554530

約数の個数: 16

約数和(自身を含む): 29982781440

約数和(自身を除く): 8773257981

約数列:

[1, 3, 17, 51, 751, 2253, 12767, 38301, 553759, 1661277, 9413903, 28241709, 415873009, 1247619027, 7069841153, 21209523459]

約数ペア:

[(1, 21209523459), (3, 7069841153), (17, 1247619027), (51, 415873009), (751, 28241709), (2253, 9413903), (12767, 1661277), (38301, 553759)]