31388391

素因数分解:

$3^4\times {\mathrm{479}}^1\times {\mathrm{809}}^1$

素因数の和:1300

約数の個数: 20

約数和(自身を含む): 47044800

約数和(自身を除く): 15656409

約数列:

[1, 3, 9, 27, 81, 479, 809, 1437, 2427, 4311, 7281, 12933, 21843, 38799, 65529, 387511, 1162533, 3487599, 10462797, 31388391]

約数ペア:

[(1, 31388391), (3, 10462797), (9, 3487599), (27, 1162533), (81, 387511), (479, 65529), (809, 38799), (1437, 21843), (2427, 12933), (4311, 7281)]