20647803

素因数分解:

$3^1\times {\mathrm{11}}^3\times {\mathrm{5171}}^1$

素因数の和:5207

約数の個数: 16

約数和(自身を含む): 30287232

約数和(自身を除く): 9639429

約数列:

[1, 3, 11, 33, 121, 363, 1331, 3993, 5171, 15513, 56881, 170643, 625691, 1877073, 6882601, 20647803]

約数ペア:

[(1, 20647803), (3, 6882601), (11, 1877073), (33, 625691), (121, 170643), (363, 56881), (1331, 15513), (3993, 5171)]