20980431

素因数分解:

$3^3\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1063}}^1$

素因数の和:1132

約数の個数: 32

約数和(自身を含む): 33707520

約数和(自身を除く): 12727089

約数列:

[1, 3, 9, 17, 27, 43, 51, 129, 153, 387, 459, 731, 1063, 1161, 2193, 3189, 6579, 9567, 18071, 19737, 28701, 45709, 54213, 137127, 162639, 411381, 487917, 777053, 1234143, 2331159, 6993477, 20980431]

約数ペア:

[(1, 20980431), (3, 6993477), (9, 2331159), (17, 1234143), (27, 777053), (43, 487917), (51, 411381), (129, 162639), (153, 137127), (387, 54213), (459, 45709), (731, 28701), (1063, 19737), (1161, 18071), (2193, 9567), (3189, 6579)]