20692159

素因数分解:

${\mathrm{19}}^2\times {\mathrm{31}}^1\times {\mathrm{43}}^2$

素因数の和:155

約数の個数: 18

約数和(自身を含む): 23079456

約数和(自身を除く): 2387297

約数列:

[1, 19, 31, 43, 361, 589, 817, 1333, 1849, 11191, 15523, 25327, 35131, 57319, 481213, 667489, 1089061, 20692159]

約数ペア:

[(1, 20692159), (19, 1089061), (31, 667489), (43, 481213), (361, 57319), (589, 35131), (817, 25327), (1333, 15523), (1849, 11191)]