18931077

素因数分解:

$3^4\times {\mathrm{11}}^1\times {\mathrm{21247}}^1$

素因数の和:21270

約数の個数: 20

約数和(自身を含む): 30852096

約数和(自身を除く): 11921019

約数列:

[1, 3, 9, 11, 27, 33, 81, 99, 297, 891, 21247, 63741, 191223, 233717, 573669, 701151, 1721007, 2103453, 6310359, 18931077]

約数ペア:

[(1, 18931077), (3, 6310359), (9, 2103453), (11, 1721007), (27, 701151), (33, 573669), (81, 233717), (99, 191223), (297, 63741), (891, 21247)]