28389627

素因数分解:

$3^2\times 7^1\times {\mathrm{73}}^1\times {\mathrm{6173}}^1$

素因数の和:6259

約数の個数: 24

約数和(自身を含む): 47515104

約数和(自身を除く): 19125477

約数列:

[1, 3, 7, 9, 21, 63, 73, 219, 511, 657, 1533, 4599, 6173, 18519, 43211, 55557, 129633, 388899, 450629, 1351887, 3154403, 4055661, 9463209, 28389627]

約数ペア:

[(1, 28389627), (3, 9463209), (7, 4055661), (9, 3154403), (21, 1351887), (63, 450629), (73, 388899), (219, 129633), (511, 55557), (657, 43211), (1533, 18519), (4599, 6173)]