1781109

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{1999}}^1$

素因数の和:2022

約数の個数: 20

約数和(自身を含む): 2904000

約数和(自身を除く): 1122891

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 1999, 5997, 17991, 21989, 53973, 65967, 161919, 197901, 593703, 1781109]

約数ペア:

[(1, 1781109), (3, 593703), (9, 197901), (11, 161919), (27, 65967), (33, 53973), (81, 21989), (99, 17991), (297, 5997), (891, 1999)]