19995447

素因数分解:

$3^1\times {\mathrm{83}}^1\times {\mathrm{131}}^1\times {\mathrm{613}}^1$

素因数の和:830

約数の個数: 16

約数和(自身を含む): 27232128

約数和(自身を除く): 7236681

約数列:

[1, 3, 83, 131, 249, 393, 613, 1839, 10873, 32619, 50879, 80303, 152637, 240909, 6665149, 19995447]

約数ペア:

[(1, 19995447), (3, 6665149), (83, 240909), (131, 152637), (249, 80303), (393, 50879), (613, 32619), (1839, 10873)]