28655613

素因数分解:

$3^4\times 7^1\times {\mathrm{50539}}^1$

素因数の和:50558

約数の個数: 20

約数和(自身を含む): 48922720

約数和(自身を除く): 20267107

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 50539, 151617, 353773, 454851, 1061319, 1364553, 3183957, 4093659, 9551871, 28655613]

約数ペア:

[(1, 28655613), (3, 9551871), (7, 4093659), (9, 3183957), (21, 1364553), (27, 1061319), (63, 454851), (81, 353773), (189, 151617), (567, 50539)]