18967011

素因数分解:

$3^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{12721}}^1$

素因数の和:12802

約数の個数: 16

約数和(自身を含む): 29311488

約数和(自身を除く): 10344477

約数列:

[1, 3, 7, 21, 71, 213, 497, 1491, 12721, 38163, 89047, 267141, 903191, 2709573, 6322337, 18967011]

約数ペア:

[(1, 18967011), (3, 6322337), (7, 2709573), (21, 903191), (71, 267141), (213, 89047), (497, 38163), (1491, 12721)]