21577136

素因数分解:

$2^4\times 7^1\times {\mathrm{47}}^1\times {\mathrm{4099}}^1$

素因数の和:4161

約数の個数: 40

約数和(自身を含む): 48806400

約数和(自身を除く): 27229264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 47, 56, 94, 112, 188, 329, 376, 658, 752, 1316, 2632, 4099, 5264, 8198, 16396, 28693, 32792, 57386, 65584, 114772, 192653, 229544, 385306, 459088, 770612, 1348571, 1541224, 2697142, 3082448, 5394284, 10788568, 21577136]

約数ペア:

[(1, 21577136), (2, 10788568), (4, 5394284), (7, 3082448), (8, 2697142), (14, 1541224), (16, 1348571), (28, 770612), (47, 459088), (56, 385306), (94, 229544), (112, 192653), (188, 114772), (329, 65584), (376, 57386), (658, 32792), (752, 28693), (1316, 16396), (2632, 8198), (4099, 5264)]