18778377

素因数分解:

$3^1\times {\mathrm{53}}^1\times {\mathrm{89}}^1\times {\mathrm{1327}}^1$

素因数の和:1472

約数の個数: 16

約数和(自身を含む): 25816320

約数和(自身を除く): 7037943

約数列:

[1, 3, 53, 89, 159, 267, 1327, 3981, 4717, 14151, 70331, 118103, 210993, 354309, 6259459, 18778377]

約数ペア:

[(1, 18778377), (3, 6259459), (53, 354309), (89, 210993), (159, 118103), (267, 70331), (1327, 14151), (3981, 4717)]