19955467

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^2\times {\mathrm{317}}^1$

素因数の和:387

約数の個数: 24

約数和(自身を含む): 25322976

約数和(自身を除く): 5367509

約数列:

[1, 7, 17, 23, 119, 161, 317, 391, 529, 2219, 2737, 3703, 5389, 7291, 8993, 37723, 51037, 62951, 123947, 167693, 867629, 1173851, 2850781, 19955467]

約数ペア:

[(1, 19955467), (7, 2850781), (17, 1173851), (23, 867629), (119, 167693), (161, 123947), (317, 62951), (391, 51037), (529, 37723), (2219, 8993), (2737, 7291), (3703, 5389)]