19952933

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{643}}^1$

素因数の和:705

約数の個数: 32

約数和(自身を含む): 27697152

約数和(自身を除く): 7744219

約数列:

[1, 7, 11, 13, 31, 77, 91, 143, 217, 341, 403, 643, 1001, 2387, 2821, 4433, 4501, 7073, 8359, 19933, 31031, 49511, 58513, 91949, 139531, 219263, 259129, 643643, 1534841, 1813903, 2850419, 19952933]

約数ペア:

[(1, 19952933), (7, 2850419), (11, 1813903), (13, 1534841), (31, 643643), (77, 259129), (91, 219263), (143, 139531), (217, 91949), (341, 58513), (403, 49511), (643, 31031), (1001, 19933), (2387, 8359), (2821, 7073), (4433, 4501)]