18438842

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1\times {\mathrm{1459}}^1$

素因数の和:1621

約数の個数: 16

約数和(自身を含む): 28382400

約数和(自身を除く): 9943558

約数列:

[1, 2, 71, 89, 142, 178, 1459, 2918, 6319, 12638, 103589, 129851, 207178, 259702, 9219421, 18438842]

約数ペア:

[(1, 18438842), (2, 9219421), (71, 259702), (89, 207178), (142, 129851), (178, 103589), (1459, 12638), (2918, 6319)]