20209189

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^2\times {\mathrm{1553}}^1$

素因数の和:1597

約数の個数: 24

約数和(自身を含む): 27300672

約数和(自身を除く): 7091483

約数列:

[1, 7, 11, 13, 77, 91, 143, 169, 1001, 1183, 1553, 1859, 10871, 13013, 17083, 20189, 119581, 141323, 222079, 262457, 1554553, 1837199, 2887027, 20209189]

約数ペア:

[(1, 20209189), (7, 2887027), (11, 1837199), (13, 1554553), (77, 262457), (91, 222079), (143, 141323), (169, 119581), (1001, 20189), (1183, 17083), (1553, 13013), (1859, 10871)]