20219991201

素因数分解:

$3^4\times {\mathrm{1601}}^1\times {\mathrm{155921}}^1$

素因数の和:157534

約数の個数: 20

約数和(自身を含む): 30224232324

約数和(自身を除く): 10004241123

約数列:

[1, 3, 9, 27, 81, 1601, 4803, 14409, 43227, 129681, 155921, 467763, 1403289, 4209867, 12629601, 249629521, 748888563, 2246665689, 6739997067, 20219991201]

約数ペア:

[(1, 20219991201), (3, 6739997067), (9, 2246665689), (27, 748888563), (81, 249629521), (1601, 12629601), (4803, 4209867), (14409, 1403289), (43227, 467763), (129681, 155921)]