21608968

素因数分解:

$2^3\times {\mathrm{41}}^1\times {\mathrm{65881}}^1$

素因数の和:65928

約数の個数: 16

約数和(自身を含む): 41505660

約数和(自身を除く): 19896692

約数列:

[1, 2, 4, 8, 41, 82, 164, 328, 65881, 131762, 263524, 527048, 2701121, 5402242, 10804484, 21608968]

約数ペア:

[(1, 21608968), (2, 10804484), (4, 5402242), (8, 2701121), (41, 527048), (82, 263524), (164, 131762), (328, 65881)]