31428891

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{9949}}^1$

素因数の和:9977

約数の個数: 24

約数和(自身を含む): 50705200

約数和(自身を除く): 19276309

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 243, 351, 1053, 3159, 9949, 29847, 89541, 129337, 268623, 388011, 805869, 1164033, 2417607, 3492099, 10476297, 31428891]

約数ペア:

[(1, 31428891), (3, 10476297), (9, 3492099), (13, 2417607), (27, 1164033), (39, 805869), (81, 388011), (117, 268623), (243, 129337), (351, 89541), (1053, 29847), (3159, 9949)]