21139836

素因数分解:

$2^2\times 3^1\times {\mathrm{743}}^1\times {\mathrm{2371}}^1$

素因数の和:3121

約数の個数: 24

約数和(自身を含む): 49413504

約数和(自身を除く): 28273668

約数列:

[1, 2, 3, 4, 6, 12, 743, 1486, 2229, 2371, 2972, 4458, 4742, 7113, 8916, 9484, 14226, 28452, 1761653, 3523306, 5284959, 7046612, 10569918, 21139836]

約数ペア:

[(1, 21139836), (2, 10569918), (3, 7046612), (4, 5284959), (6, 3523306), (12, 1761653), (743, 28452), (1486, 14226), (2229, 9484), (2371, 8916), (2972, 7113), (4458, 4742)]