20771737

素因数分解:

$7^3\times {\mathrm{23}}^1\times {\mathrm{2633}}^1$

素因数の和:2677

約数の個数: 16

約数和(自身を含む): 25286400

約数和(自身を除く): 4514663

約数列:

[1, 7, 23, 49, 161, 343, 1127, 2633, 7889, 18431, 60559, 129017, 423913, 903119, 2967391, 20771737]

約数ペア:

[(1, 20771737), (7, 2967391), (23, 903119), (49, 423913), (161, 129017), (343, 60559), (1127, 18431), (2633, 7889)]