28816407

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{3919}}^1$

素因数の和:3987

約数の個数: 24

約数和(自身を含む): 44844800

約数和(自身を除く): 16028393

約数列:

[1, 3, 9, 19, 43, 57, 129, 171, 387, 817, 2451, 3919, 7353, 11757, 35271, 74461, 168517, 223383, 505551, 670149, 1516653, 3201823, 9605469, 28816407]

約数ペア:

[(1, 28816407), (3, 9605469), (9, 3201823), (19, 1516653), (43, 670149), (57, 505551), (129, 223383), (171, 168517), (387, 74461), (817, 35271), (2451, 11757), (3919, 7353)]