21572656

素因数分解:

$2^4\times 7^1\times {\mathrm{192613}}^1$

素因数の和:192628

約数の個数: 20

約数和(自身を含む): 47768272

約数和(自身を除く): 26195616

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 192613, 385226, 770452, 1348291, 1540904, 2696582, 3081808, 5393164, 10786328, 21572656]

約数ペア:

[(1, 21572656), (2, 10786328), (4, 5393164), (7, 3081808), (8, 2696582), (14, 1540904), (16, 1348291), (28, 770452), (56, 385226), (112, 192613)]