131567409

素因数分解:

$3^4\times {\mathrm{479}}^1\times {\mathrm{3391}}^1$

素因数の和:3882

約数の個数: 20

約数和(自身を含む): 197007360

約数和(自身を除く): 65439951

約数列:

[1, 3, 9, 27, 81, 479, 1437, 3391, 4311, 10173, 12933, 30519, 38799, 91557, 274671, 1624289, 4872867, 14618601, 43855803, 131567409]

約数ペア:

[(1, 131567409), (3, 43855803), (9, 14618601), (27, 4872867), (81, 1624289), (479, 274671), (1437, 91557), (3391, 38799), (4311, 30519), (10173, 12933)]