209966687

素因数分解:

$7^1\times {\mathrm{127}}^1\times {\mathrm{257}}^1\times {\mathrm{919}}^1$

素因数の和:1310

約数の個数: 16

約数和(自身を含む): 243056640

約数和(自身を除く): 33089953

約数列:

[1, 7, 127, 257, 889, 919, 1799, 6433, 32639, 116713, 228473, 236183, 816991, 1653281, 29995241, 209966687]

約数ペア:

[(1, 209966687), (7, 29995241), (127, 1653281), (257, 816991), (889, 236183), (919, 228473), (1799, 116713), (6433, 32639)]