19771703

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{137}}^1\times {\mathrm{389}}^1$

素因数の和:586

約数の個数: 16

約数和(自身を含む): 23250240

約数和(自身を除く): 3478537

約数列:

[1, 7, 53, 137, 371, 389, 959, 2723, 7261, 20617, 50827, 53293, 144319, 373051, 2824529, 19771703]

約数ペア:

[(1, 19771703), (7, 2824529), (53, 373051), (137, 144319), (371, 53293), (389, 50827), (959, 20617), (2723, 7261)]