16491231

素因数分解:

$3^2\times {\mathrm{43}}^2\times {\mathrm{991}}^1$

素因数の和:1083

約数の個数: 18

約数和(自身を含む): 24412128

約数和(自身を除く): 7920897

約数列:

[1, 3, 9, 43, 129, 387, 991, 1849, 2973, 5547, 8919, 16641, 42613, 127839, 383517, 1832359, 5497077, 16491231]

約数ペア:

[(1, 16491231), (3, 5497077), (9, 1832359), (43, 383517), (129, 127839), (387, 42613), (991, 16641), (1849, 8919), (2973, 5547)]