20889533

素因数分解:

$7^2\times {\mathrm{103}}^1\times {\mathrm{4139}}^1$

素因数の和:4256

約数の個数: 12

約数和(自身を含む): 24541920

約数和(自身を除く): 3652387

約数列:

[1, 7, 49, 103, 721, 4139, 5047, 28973, 202811, 426317, 2984219, 20889533]

約数ペア:

[(1, 20889533), (7, 2984219), (49, 426317), (103, 202811), (721, 28973), (4139, 5047)]