18943713

素因数分解:

$3^4\times {\mathrm{271}}^1\times {\mathrm{863}}^1$

素因数の和:1146

約数の個数: 20

約数和(自身を含む): 28435968

約数和(自身を除く): 9492255

約数列:

[1, 3, 9, 27, 81, 271, 813, 863, 2439, 2589, 7317, 7767, 21951, 23301, 69903, 233873, 701619, 2104857, 6314571, 18943713]

約数ペア:

[(1, 18943713), (3, 6314571), (9, 2104857), (27, 701619), (81, 233873), (271, 69903), (813, 23301), (863, 21951), (2439, 7767), (2589, 7317)]