18899001

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21211}}^1$

素因数の和:21234

約数の個数: 20

約数和(自身を含む): 30799824

約数和(自身を除く): 11900823

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21211, 63633, 190899, 233321, 572697, 699963, 1718091, 2099889, 6299667, 18899001]

約数ペア:

[(1, 18899001), (3, 6299667), (9, 2099889), (11, 1718091), (27, 699963), (33, 572697), (81, 233321), (99, 190899), (297, 63633), (891, 21211)]