209905904

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1009163}}^1$

素因数の和:1009184

約数の個数: 20

約数和(自身を含む): 437977176

約数和(自身を除く): 228071272

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1009163, 2018326, 4036652, 8073304, 13119119, 16146608, 26238238, 52476476, 104952952, 209905904]

約数ペア:

[(1, 209905904), (2, 104952952), (4, 52476476), (8, 26238238), (13, 16146608), (16, 13119119), (26, 8073304), (52, 4036652), (104, 2018326), (208, 1009163)]