19992535

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{199}}^1\times {\mathrm{283}}^1$

素因数の和:558

約数の個数: 16

約数和(自身を含む): 24537600

約数和(自身を除く): 4545065

約数列:

[1, 5, 71, 199, 283, 355, 995, 1415, 14129, 20093, 56317, 70645, 100465, 281585, 3998507, 19992535]

約数ペア:

[(1, 19992535), (5, 3998507), (71, 281585), (199, 100465), (283, 70645), (355, 56317), (995, 20093), (1415, 14129)]