19974687

素因数分解:

$3^1\times {\mathrm{103}}^1\times {\mathrm{127}}^1\times {\mathrm{509}}^1$

素因数の和:742

約数の個数: 16

約数和(自身を含む): 27156480

約数和(自身を除く): 7181793

約数列:

[1, 3, 103, 127, 309, 381, 509, 1527, 13081, 39243, 52427, 64643, 157281, 193929, 6658229, 19974687]

約数ペア:

[(1, 19974687), (3, 6658229), (103, 193929), (127, 157281), (309, 64643), (381, 52427), (509, 39243), (1527, 13081)]