209668

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{53}}^1$

素因数の和:123

約数の個数: 24

約数和(自身を含む): 399168

約数和(自身を除く): 189500

約数列:

[1, 2, 4, 23, 43, 46, 53, 86, 92, 106, 172, 212, 989, 1219, 1978, 2279, 2438, 3956, 4558, 4876, 9116, 52417, 104834, 209668]

約数ペア:

[(1, 209668), (2, 104834), (4, 52417), (23, 9116), (43, 4876), (46, 4558), (53, 3956), (86, 2438), (92, 2279), (106, 1978), (172, 1219), (212, 989)]