21708099

素因数分解:

$3^2\times 7^1\times {\mathrm{17}}^1\times {\mathrm{20269}}^1$

素因数の和:20299

約数の個数: 24

約数和(自身を含む): 37945440

約数和(自身を除く): 16237341

約数列:

[1, 3, 7, 9, 17, 21, 51, 63, 119, 153, 357, 1071, 20269, 60807, 141883, 182421, 344573, 425649, 1033719, 1276947, 2412011, 3101157, 7236033, 21708099]

約数ペア:

[(1, 21708099), (3, 7236033), (7, 3101157), (9, 2412011), (17, 1276947), (21, 1033719), (51, 425649), (63, 344573), (119, 182421), (153, 141883), (357, 60807), (1071, 20269)]