20747343

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{409}}^1\times {\mathrm{457}}^1$

素因数の和:906

約数の個数: 16

約数和(自身を含む): 28542560

約数和(自身を除く): 7795217

約数列:

[1, 3, 37, 111, 409, 457, 1227, 1371, 15133, 16909, 45399, 50727, 186913, 560739, 6915781, 20747343]

約数ペア:

[(1, 20747343), (3, 6915781), (37, 560739), (111, 186913), (409, 50727), (457, 45399), (1227, 16909), (1371, 15133)]