20989314

素因数分解:

$2^1\times 3^3\times {\mathrm{388691}}^1$

素因数の和:388702

約数の個数: 16

約数和(自身を含む): 46643040

約数和(自身を除く): 25653726

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 388691, 777382, 1166073, 2332146, 3498219, 6996438, 10494657, 20989314]

約数ペア:

[(1, 20989314), (2, 10494657), (3, 6996438), (6, 3498219), (9, 2332146), (18, 1166073), (27, 777382), (54, 388691)]