28717983

素因数分解:

$3^5\times 7^1\times {\mathrm{16883}}^1$

素因数の和:16905

約数の個数: 24

約数和(自身を含む): 49166208

約数和(自身を除く): 20448225

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 243, 567, 1701, 16883, 50649, 118181, 151947, 354543, 455841, 1063629, 1367523, 3190887, 4102569, 9572661, 28717983]

約数ペア:

[(1, 28717983), (3, 9572661), (7, 4102569), (9, 3190887), (21, 1367523), (27, 1063629), (63, 455841), (81, 354543), (189, 151947), (243, 118181), (567, 50649), (1701, 16883)]