21839601

素因数分解:

$3^1\times 7^1\times {\mathrm{281}}^1\times {\mathrm{3701}}^1$

素因数の和:3992

約数の個数: 16

約数和(自身を含む): 33406848

約数和(自身を除く): 11567247

約数列:

[1, 3, 7, 21, 281, 843, 1967, 3701, 5901, 11103, 25907, 77721, 1039981, 3119943, 7279867, 21839601]

約数ペア:

[(1, 21839601), (3, 7279867), (7, 3119943), (21, 1039981), (281, 77721), (843, 25907), (1967, 11103), (3701, 5901)]