131142987

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{409}}^1\times {\mathrm{1549}}^1$

素因数の和:1987

約数の個数: 24

約数和(自身を含む): 198276000

約数和(自身を除く): 67133013

約数列:

[1, 3, 9, 23, 69, 207, 409, 1227, 1549, 3681, 4647, 9407, 13941, 28221, 35627, 84663, 106881, 320643, 633541, 1900623, 5701869, 14571443, 43714329, 131142987]

約数ペア:

[(1, 131142987), (3, 43714329), (9, 14571443), (23, 5701869), (69, 1900623), (207, 633541), (409, 320643), (1227, 106881), (1549, 84663), (3681, 35627), (4647, 28221), (9407, 13941)]