20405471

素因数分解:

${\mathrm{31}}^1\times {\mathrm{71}}^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1$

素因数の和:302

約数の個数: 16

約数和(自身を含む): 21823488

約数和(自身を除く): 1418017

約数列:

[1, 31, 71, 73, 127, 2201, 2263, 3937, 5183, 9017, 9271, 160673, 279527, 287401, 658241, 20405471]

約数ペア:

[(1, 20405471), (31, 658241), (71, 287401), (73, 279527), (127, 160673), (2201, 9271), (2263, 9017), (3937, 5183)]