207721718

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{76991}}^1$

素因数の和:77083

約数の個数: 16

約数和(自身を含む): 332605440

約数和(自身を除く): 124883722

約数列:

[1, 2, 19, 38, 71, 142, 1349, 2698, 76991, 153982, 1462829, 2925658, 5466361, 10932722, 103860859, 207721718]

約数ペア:

[(1, 207721718), (2, 103860859), (19, 10932722), (38, 5466361), (71, 2925658), (142, 1462829), (1349, 153982), (2698, 76991)]