20527165

素因数分解:

$5^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{1091}}^1$

素因数の和:1220

約数の個数: 16

約数和(自身を含む): 25474176

約数和(自身を除く): 4947011

約数列:

[1, 5, 53, 71, 265, 355, 1091, 3763, 5455, 18815, 57823, 77461, 289115, 387305, 4105433, 20527165]

約数ペア:

[(1, 20527165), (5, 4105433), (53, 387305), (71, 289115), (265, 77461), (355, 57823), (1091, 18815), (3763, 5455)]