20006847

素因数分解:

$3^2\times 7^3\times {\mathrm{6481}}^1$

素因数の和:6508

約数の個数: 24

約数和(自身を含む): 33706400

約数和(自身を除く): 13699553

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 343, 441, 1029, 3087, 6481, 19443, 45367, 58329, 136101, 317569, 408303, 952707, 2222983, 2858121, 6668949, 20006847]

約数ペア:

[(1, 20006847), (3, 6668949), (7, 2858121), (9, 2222983), (21, 952707), (49, 408303), (63, 317569), (147, 136101), (343, 58329), (441, 45367), (1029, 19443), (3087, 6481)]