18947885

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{9311}}^1$

素因数の和:9364

約数の個数: 16

約数和(自身を含む): 25477632

約数和(自身を除く): 6529747

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 9311, 46555, 102421, 344507, 512105, 1722535, 3789577, 18947885]

約数ペア:

[(1, 18947885), (5, 3789577), (11, 1722535), (37, 512105), (55, 344507), (185, 102421), (407, 46555), (2035, 9311)]