20620523

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{571}}^1$

素因数の和:663

約数の個数: 24

約数和(自身を含む): 26604864

約数和(自身を除く): 5984341

約数列:

[1, 7, 11, 49, 67, 77, 469, 539, 571, 737, 3283, 3997, 5159, 6281, 27979, 36113, 38257, 43967, 267799, 307769, 420827, 1874593, 2945789, 20620523]

約数ペア:

[(1, 20620523), (7, 2945789), (11, 1874593), (49, 420827), (67, 307769), (77, 267799), (469, 43967), (539, 38257), (571, 36113), (737, 27979), (3283, 6281), (3997, 5159)]