18656428

素因数分解:

$2^2\times 7^1\times {\mathrm{666301}}^1$

素因数の和:666312

約数の個数: 12

約数和(自身を含む): 37312912

約数和(自身を除く): 18656484

約数列:

[1, 2, 4, 7, 14, 28, 666301, 1332602, 2665204, 4664107, 9328214, 18656428]

約数ペア:

[(1, 18656428), (2, 9328214), (4, 4664107), (7, 2665204), (14, 1332602), (28, 666301)]