171640556

素因数分解:

$2^2\times {\mathrm{109}}^1\times {\mathrm{393671}}^1$

素因数の和:393784

約数の個数: 12

約数和(自身を含む): 303127440

約数和(自身を除く): 131486884

約数列:

[1, 2, 4, 109, 218, 436, 393671, 787342, 1574684, 42910139, 85820278, 171640556]

約数ペア:

[(1, 171640556), (2, 85820278), (4, 42910139), (109, 1574684), (218, 787342), (436, 393671)]