20528478

素因数分解:

$2^1\times 3^4\times {\mathrm{126719}}^1$

素因数の和:126733

約数の個数: 20

約数和(自身を含む): 45999360

約数和(自身を除く): 25470882

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 81, 162, 126719, 253438, 380157, 760314, 1140471, 2280942, 3421413, 6842826, 10264239, 20528478]

約数ペア:

[(1, 20528478), (2, 10264239), (3, 6842826), (6, 3421413), (9, 2280942), (18, 1140471), (27, 760314), (54, 380157), (81, 253438), (162, 126719)]