209121015

素因数分解:

$3^1\times 5^1\times {\mathrm{821}}^1\times {\mathrm{16981}}^1$

素因数の和:17810

約数の個数: 16

約数和(自身を含む): 335020896

約数和(自身を除く): 125899881

約数列:

[1, 3, 5, 15, 821, 2463, 4105, 12315, 16981, 50943, 84905, 254715, 13941401, 41824203, 69707005, 209121015]

約数ペア:

[(1, 209121015), (3, 69707005), (5, 41824203), (15, 13941401), (821, 254715), (2463, 84905), (4105, 50943), (12315, 16981)]