16871905

素因数分解:

$5^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{337}}^1$

素因数の和:409

約数の個数: 32

約数和(自身を含む): 23362560

約数和(自身を除く): 6490655

約数列:

[1, 5, 17, 19, 31, 85, 95, 155, 323, 337, 527, 589, 1615, 1685, 2635, 2945, 5729, 6403, 10013, 10447, 28645, 32015, 50065, 52235, 108851, 177599, 198493, 544255, 887995, 992465, 3374381, 16871905]

約数ペア:

[(1, 16871905), (5, 3374381), (17, 992465), (19, 887995), (31, 544255), (85, 198493), (95, 177599), (155, 108851), (323, 52235), (337, 50065), (527, 32015), (589, 28645), (1615, 10447), (1685, 10013), (2635, 6403), (2945, 5729)]