21076705

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{71}}^1\times {\mathrm{4567}}^1$

素因数の和:4656

約数の個数: 16

約数和(自身を含む): 27627264

約数和(自身を除く): 6550559

約数列:

[1, 5, 13, 65, 71, 355, 923, 4567, 4615, 22835, 59371, 296855, 324257, 1621285, 4215341, 21076705]

約数ペア:

[(1, 21076705), (5, 4215341), (13, 1621285), (65, 324257), (71, 296855), (355, 59371), (923, 22835), (4567, 4615)]