21079004

素因数分解:

$2^2\times {\mathrm{67}}^1\times {\mathrm{78653}}^1$

素因数の和:78724

約数の個数: 12

約数和(自身を含む): 37439304

約数和(自身を除く): 16360300

約数列:

[1, 2, 4, 67, 134, 268, 78653, 157306, 314612, 5269751, 10539502, 21079004]

約数ペア:

[(1, 21079004), (2, 10539502), (4, 5269751), (67, 314612), (134, 157306), (268, 78653)]