20393387

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{7451}}^1$

素因数の和:7498

約数の個数: 16

約数和(自身を含む): 25754112

約数和(自身を除く): 5360725

約数列:

[1, 7, 17, 23, 119, 161, 391, 2737, 7451, 52157, 126667, 171373, 886669, 1199611, 2913341, 20393387]

約数ペア:

[(1, 20393387), (7, 2913341), (17, 1199611), (23, 886669), (119, 171373), (161, 126667), (391, 52157), (2737, 7451)]