28621809

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{55793}}^1$

素因数の和:55821

約数の個数: 16

約数和(自身を含む): 44635200

約数和(自身を除く): 16013391

約数列:

[1, 3, 9, 19, 27, 57, 171, 513, 55793, 167379, 502137, 1060067, 1506411, 3180201, 9540603, 28621809]

約数ペア:

[(1, 28621809), (3, 9540603), (9, 3180201), (19, 1506411), (27, 1060067), (57, 502137), (171, 167379), (513, 55793)]