2172987

素因数分解:

$3^4\times {\mathrm{139}}^1\times {\mathrm{193}}^1$

素因数の和:344

約数の個数: 20

約数和(自身を含む): 3286360

約数和(自身を除く): 1113373

約数列:

[1, 3, 9, 27, 81, 139, 193, 417, 579, 1251, 1737, 3753, 5211, 11259, 15633, 26827, 80481, 241443, 724329, 2172987]

約数ペア:

[(1, 2172987), (3, 724329), (9, 241443), (27, 80481), (81, 26827), (139, 15633), (193, 11259), (417, 5211), (579, 3753), (1251, 1737)]