20817916

素因数分解:

$2^2\times 7^1\times {\mathrm{761}}^1\times {\mathrm{977}}^1$

素因数の和:1749

約数の個数: 24

約数和(自身を含む): 41733216

約数和(自身を除く): 20915300

約数列:

[1, 2, 4, 7, 14, 28, 761, 977, 1522, 1954, 3044, 3908, 5327, 6839, 10654, 13678, 21308, 27356, 743497, 1486994, 2973988, 5204479, 10408958, 20817916]

約数ペア:

[(1, 20817916), (2, 10408958), (4, 5204479), (7, 2973988), (14, 1486994), (28, 743497), (761, 27356), (977, 21308), (1522, 13678), (1954, 10654), (3044, 6839), (3908, 5327)]