20545679

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{127}}^1\times {\mathrm{191}}^1$

素因数の和:347

約数の個数: 24

約数和(自身を含む): 26148864

約数和(自身を除く): 5603185

約数列:

[1, 7, 11, 77, 121, 127, 191, 847, 889, 1337, 1397, 2101, 9779, 14707, 15367, 23111, 24257, 107569, 161777, 169799, 266827, 1867789, 2935097, 20545679]

約数ペア:

[(1, 20545679), (7, 2935097), (11, 1867789), (77, 266827), (121, 169799), (127, 161777), (191, 107569), (847, 24257), (889, 23111), (1337, 15367), (1397, 14707), (2101, 9779)]