31430399

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{1847}}^1$

素因数の和:1895

約数の個数: 32

約数和(自身を含む): 44706816

約数和(自身を除く): 13276417

約数列:

[1, 7, 11, 13, 17, 77, 91, 119, 143, 187, 221, 1001, 1309, 1547, 1847, 2431, 12929, 17017, 20317, 24011, 31399, 142219, 168077, 219793, 264121, 345389, 408187, 1848847, 2417723, 2857309, 4490057, 31430399]

約数ペア:

[(1, 31430399), (7, 4490057), (11, 2857309), (13, 2417723), (17, 1848847), (77, 408187), (91, 345389), (119, 264121), (143, 219793), (187, 168077), (221, 142219), (1001, 31399), (1309, 24011), (1547, 20317), (1847, 17017), (2431, 12929)]