7980327

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1213}}^1$

素因数の和:1279

約数の個数: 24

約数和(自身を含む): 12499344

約数和(自身を除く): 4519017

約数列:

[1, 3, 9, 17, 43, 51, 129, 153, 387, 731, 1213, 2193, 3639, 6579, 10917, 20621, 52159, 61863, 156477, 185589, 469431, 886703, 2660109, 7980327]

約数ペア:

[(1, 7980327), (3, 2660109), (9, 886703), (17, 469431), (43, 185589), (51, 156477), (129, 61863), (153, 52159), (387, 20621), (731, 10917), (1213, 6579), (2193, 3639)]