388619991

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{71}}^1\times {\mathrm{5479}}^1$

素因数の和:5596

約数の個数: 32

約数和(自身を含む): 599731200

約数和(自身を除く): 211111209

約数列:

[1, 3, 9, 27, 37, 71, 111, 213, 333, 639, 999, 1917, 2627, 5479, 7881, 16437, 23643, 49311, 70929, 147933, 202723, 389009, 608169, 1167027, 1824507, 3501081, 5473521, 10503243, 14393333, 43179999, 129539997, 388619991]

約数ペア:

[(1, 388619991), (3, 129539997), (9, 43179999), (27, 14393333), (37, 10503243), (71, 5473521), (111, 3501081), (213, 1824507), (333, 1167027), (639, 608169), (999, 389009), (1917, 202723), (2627, 147933), (5479, 70929), (7881, 49311), (16437, 23643)]