18818811

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21121}}^1$

素因数の和:21144

約数の個数: 20

約数和(自身を含む): 30669144

約数和(自身を除く): 11850333

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21121, 63363, 190089, 232331, 570267, 696993, 1710801, 2090979, 6272937, 18818811]

約数ペア:

[(1, 18818811), (3, 6272937), (9, 2090979), (11, 1710801), (27, 696993), (33, 570267), (81, 232331), (99, 190089), (297, 63363), (891, 21121)]