18440656

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{88657}}^1$

素因数の和:88678

約数の個数: 20

約数和(自身を含む): 38477572

約数和(自身を除く): 20036916

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 88657, 177314, 354628, 709256, 1152541, 1418512, 2305082, 4610164, 9220328, 18440656]

約数ペア:

[(1, 18440656), (2, 9220328), (4, 4610164), (8, 2305082), (13, 1418512), (16, 1152541), (26, 709256), (52, 354628), (104, 177314), (208, 88657)]