19311994

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{151}}^1\times {\mathrm{4919}}^1$

素因数の和:5085

約数の個数: 16

約数和(自身を含む): 31409280

約数和(自身を除く): 12097286

約数列:

[1, 2, 13, 26, 151, 302, 1963, 3926, 4919, 9838, 63947, 127894, 742769, 1485538, 9655997, 19311994]

約数ペア:

[(1, 19311994), (2, 9655997), (13, 1485538), (26, 742769), (151, 127894), (302, 63947), (1963, 9838), (3926, 4919)]