21016037

素因数分解:

$7^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{1531}}^1$

素因数の和:1628

約数の個数: 16

約数和(自身を含む): 25149312

約数和(自身を除く): 4133275

約数列:

[1, 7, 37, 53, 259, 371, 1531, 1961, 10717, 13727, 56647, 81143, 396529, 568001, 3002291, 21016037]

約数ペア:

[(1, 21016037), (7, 3002291), (37, 568001), (53, 396529), (259, 81143), (371, 56647), (1531, 13727), (1961, 10717)]