21906711

素因数分解:

$3^2\times {\mathrm{109}}^1\times {\mathrm{137}}^1\times {\mathrm{163}}^1$

素因数の和:415

約数の個数: 24

約数和(自身を含む): 32363760

約数和(自身を除く): 10457049

約数列:

[1, 3, 9, 109, 137, 163, 327, 411, 489, 981, 1233, 1467, 14933, 17767, 22331, 44799, 53301, 66993, 134397, 159903, 200979, 2434079, 7302237, 21906711]

約数ペア:

[(1, 21906711), (3, 7302237), (9, 2434079), (109, 200979), (137, 159903), (163, 134397), (327, 66993), (411, 53301), (489, 44799), (981, 22331), (1233, 17767), (1467, 14933)]