30511481

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{163}}^1$

素因数の和:222

約数の個数: 48

約数和(自身を含む): 43972992

約数和(自身を除く): 13461511

約数列:

[1, 7, 11, 13, 17, 77, 91, 119, 121, 143, 163, 187, 221, 847, 1001, 1141, 1309, 1547, 1573, 1793, 2057, 2119, 2431, 2771, 11011, 12551, 14399, 14833, 17017, 19397, 19723, 23309, 26741, 30481, 36023, 138061, 163163, 187187, 213367, 252161, 256399, 335291, 396253, 1794793, 2347037, 2773771, 4358783, 30511481]

約数ペア:

[(1, 30511481), (7, 4358783), (11, 2773771), (13, 2347037), (17, 1794793), (77, 396253), (91, 335291), (119, 256399), (121, 252161), (143, 213367), (163, 187187), (187, 163163), (221, 138061), (847, 36023), (1001, 30481), (1141, 26741), (1309, 23309), (1547, 19723), (1573, 19397), (1793, 17017), (2057, 14833), (2119, 14399), (2431, 12551), (2771, 11011)]