166664638

素因数分解:

$2^1\times 7^1\times {\mathrm{421}}^1\times {\mathrm{28277}}^1$

素因数の和:28707

約数の個数: 16

約数和(自身を含む): 286399584

約数和(自身を除く): 119734946

約数列:

[1, 2, 7, 14, 421, 842, 2947, 5894, 28277, 56554, 197939, 395878, 11904617, 23809234, 83332319, 166664638]

約数ペア:

[(1, 166664638), (2, 83332319), (7, 23809234), (14, 11904617), (421, 395878), (842, 197939), (2947, 56554), (5894, 28277)]