21327761

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{3301}}^1$

素因数の和:3392

約数の個数: 16

約数和(自身を含む): 26627328

約数和(自身を除く): 5299567

約数列:

[1, 7, 13, 71, 91, 497, 923, 3301, 6461, 23107, 42913, 234371, 300391, 1640597, 3046823, 21327761]

約数ペア:

[(1, 21327761), (7, 3046823), (13, 1640597), (71, 300391), (91, 234371), (497, 42913), (923, 23107), (3301, 6461)]