20909308

素因数分解:

$2^2\times 7^1\times {\mathrm{479}}^1\times {\mathrm{1559}}^1$

素因数の和:2049

約数の個数: 24

約数和(自身を含む): 41932800

約数和(自身を除く): 21023492

約数列:

[1, 2, 4, 7, 14, 28, 479, 958, 1559, 1916, 3118, 3353, 6236, 6706, 10913, 13412, 21826, 43652, 746761, 1493522, 2987044, 5227327, 10454654, 20909308]

約数ペア:

[(1, 20909308), (2, 10454654), (4, 5227327), (7, 2987044), (14, 1493522), (28, 746761), (479, 43652), (958, 21826), (1559, 13412), (1916, 10913), (3118, 6706), (3353, 6236)]