21709310

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{103}}^1\times {\mathrm{3011}}^1$

素因数の和:3128

約数の個数: 32

約数和(自身を含む): 45107712

約数和(自身を除く): 23398402

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 103, 206, 515, 721, 1030, 1442, 3011, 3605, 6022, 7210, 15055, 21077, 30110, 42154, 105385, 210770, 310133, 620266, 1550665, 2170931, 3101330, 4341862, 10854655, 21709310]

約数ペア:

[(1, 21709310), (2, 10854655), (5, 4341862), (7, 3101330), (10, 2170931), (14, 1550665), (35, 620266), (70, 310133), (103, 210770), (206, 105385), (515, 42154), (721, 30110), (1030, 21077), (1442, 15055), (3011, 7210), (3605, 6022)]