21394004

素因数分解:

$2^2\times {\mathrm{71}}^2\times {\mathrm{1061}}^1$

素因数の和:1207

約数の個数: 18

約数和(自身を含む): 38010042

約数和(自身を除く): 16616038

約数列:

[1, 2, 4, 71, 142, 284, 1061, 2122, 4244, 5041, 10082, 20164, 75331, 150662, 301324, 5348501, 10697002, 21394004]

約数ペア:

[(1, 21394004), (2, 10697002), (4, 5348501), (71, 301324), (142, 150662), (284, 75331), (1061, 20164), (2122, 10082), (4244, 5041)]