128515869

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{279991}}^1$

素因数の和:280017

約数の個数: 16

約数和(自身を含む): 201594240

約数和(自身を除く): 73078371

約数列:

[1, 3, 9, 17, 27, 51, 153, 459, 279991, 839973, 2519919, 4759847, 7559757, 14279541, 42838623, 128515869]

約数ペア:

[(1, 128515869), (3, 42838623), (9, 14279541), (17, 7559757), (27, 4759847), (51, 2519919), (153, 839973), (459, 279991)]