20874147

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{8353}}^1$

素因数の和:8387

約数の個数: 24

約数和(自身を含む): 34284816

約数和(自身を除く): 13410669

約数列:

[1, 3, 7, 17, 21, 49, 51, 119, 147, 357, 833, 2499, 8353, 25059, 58471, 142001, 175413, 409297, 426003, 994007, 1227891, 2982021, 6958049, 20874147]

約数ペア:

[(1, 20874147), (3, 6958049), (7, 2982021), (17, 1227891), (21, 994007), (49, 426003), (51, 409297), (119, 175413), (147, 142001), (357, 58471), (833, 25059), (2499, 8353)]