21396063

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{7727}}^1$

素因数の和:7814

約数の個数: 16

約数和(自身を含む): 31159296

約数和(自身を除く): 9763233

約数列:

[1, 3, 13, 39, 71, 213, 923, 2769, 7727, 23181, 100451, 301353, 548617, 1645851, 7132021, 21396063]

約数ペア:

[(1, 21396063), (3, 7132021), (13, 1645851), (39, 548617), (71, 301353), (213, 100451), (923, 23181), (2769, 7727)]