19968591

素因数分解:

$3^1\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{3083}}^1$

素因数の和:3230

約数の個数: 16

約数和(自身を含む): 28422144

約数和(自身を除く): 8453553

約数列:

[1, 3, 17, 51, 127, 381, 2159, 3083, 6477, 9249, 52411, 157233, 391541, 1174623, 6656197, 19968591]

約数ペア:

[(1, 19968591), (3, 6656197), (17, 1174623), (51, 391541), (127, 157233), (381, 52411), (2159, 9249), (3083, 6477)]