20909691

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{3061}}^1$

素因数の和:3104

約数の個数: 32

約数和(自身を含む): 35274240

約数和(自身を除く): 14364549

約数列:

[1, 3, 9, 11, 23, 27, 33, 69, 99, 207, 253, 297, 621, 759, 2277, 3061, 6831, 9183, 27549, 33671, 70403, 82647, 101013, 211209, 303039, 633627, 774433, 909117, 1900881, 2323299, 6969897, 20909691]

約数ペア:

[(1, 20909691), (3, 6969897), (9, 2323299), (11, 1900881), (23, 909117), (27, 774433), (33, 633627), (69, 303039), (99, 211209), (207, 101013), (253, 82647), (297, 70403), (621, 33671), (759, 27549), (2277, 9183), (3061, 6831)]