21515857

素因数分解:

${\mathrm{11}}^2\times {\mathrm{41}}^1\times {\mathrm{4337}}^1$

素因数の和:4400

約数の個数: 12

約数和(自身を含む): 24232068

約数和(自身を除く): 2716211

約数列:

[1, 11, 41, 121, 451, 4337, 4961, 47707, 177817, 524777, 1955987, 21515857]

約数ペア:

[(1, 21515857), (11, 1955987), (41, 524777), (121, 177817), (451, 47707), (4337, 4961)]