20072007

素因数分解:

$3^2\times {\mathrm{73}}^1\times {\mathrm{137}}^1\times {\mathrm{223}}^1$

素因数の和:439

約数の個数: 24

約数和(自身を含む): 29737344

約数和(自身を除く): 9665337

約数列:

[1, 3, 9, 73, 137, 219, 223, 411, 657, 669, 1233, 2007, 10001, 16279, 30003, 30551, 48837, 90009, 91653, 146511, 274959, 2230223, 6690669, 20072007]

約数ペア:

[(1, 20072007), (3, 6690669), (9, 2230223), (73, 274959), (137, 146511), (219, 91653), (223, 90009), (411, 48837), (657, 30551), (669, 30003), (1233, 16279), (2007, 10001)]