21719159

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{127}}^1\times {\mathrm{2221}}^1$

素因数の和:2366

約数の個数: 16

約数和(自身を含む): 27303936

約数和(自身を除く): 5584777

約数列:

[1, 7, 11, 77, 127, 889, 1397, 2221, 9779, 15547, 24431, 171017, 282067, 1974469, 3102737, 21719159]

約数ペア:

[(1, 21719159), (7, 3102737), (11, 1974469), (77, 282067), (127, 171017), (889, 24431), (1397, 15547), (2221, 9779)]