28726299

素因数分解:

$3^3\times 7^2\times {\mathrm{21713}}^1$

素因数の和:21736

約数の個数: 24

約数和(自身を含む): 49507920

約数和(自身を除く): 20781621

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 441, 1323, 21713, 65139, 151991, 195417, 455973, 586251, 1063937, 1367919, 3191811, 4103757, 9575433, 28726299]

約数ペア:

[(1, 28726299), (3, 9575433), (7, 4103757), (9, 3191811), (21, 1367919), (27, 1063937), (49, 586251), (63, 455973), (147, 195417), (189, 151991), (441, 65139), (1323, 21713)]