20853870037

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{1187}}^1\times {\mathrm{17551}}^1$

素因数の和:18769

約数の個数: 32

約数和(自身を含む): 28024786944

約数和(自身を除く): 7170916907

約数列:

[1, 7, 11, 13, 77, 91, 143, 1001, 1187, 8309, 13057, 15431, 17551, 91399, 108017, 122857, 169741, 193061, 228163, 1188187, 1351427, 1597141, 2509793, 17568551, 20833037, 145831259, 229163407, 270829481, 1604143849, 1895806367, 2979124291, 20853870037]

約数ペア:

[(1, 20853870037), (7, 2979124291), (11, 1895806367), (13, 1604143849), (77, 270829481), (91, 229163407), (143, 145831259), (1001, 20833037), (1187, 17568551), (8309, 2509793), (13057, 1597141), (15431, 1351427), (17551, 1188187), (91399, 228163), (108017, 193061), (122857, 169741)]