16691991

素因数分解:

$3^1\times {\mathrm{127}}^1\times {\mathrm{193}}^1\times {\mathrm{227}}^1$

素因数の和:550

約数の個数: 16

約数和(自身を含む): 22646784

約数和(自身を除く): 5954793

約数列:

[1, 3, 127, 193, 227, 381, 579, 681, 24511, 28829, 43811, 73533, 86487, 131433, 5563997, 16691991]

約数ペア:

[(1, 16691991), (3, 5563997), (127, 131433), (193, 86487), (227, 73533), (381, 43811), (579, 28829), (681, 24511)]