21006486

素因数分解:

$2^1\times 3^3\times {\mathrm{71}}^1\times {\mathrm{5479}}^1$

素因数の和:5561

約数の個数: 32

約数和(自身を含む): 47347200

約数和(自身を除く): 26340714

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 71, 142, 213, 426, 639, 1278, 1917, 3834, 5479, 10958, 16437, 32874, 49311, 98622, 147933, 295866, 389009, 778018, 1167027, 2334054, 3501081, 7002162, 10503243, 21006486]

約数ペア:

[(1, 21006486), (2, 10503243), (3, 7002162), (6, 3501081), (9, 2334054), (18, 1167027), (27, 778018), (54, 389009), (71, 295866), (142, 147933), (213, 98622), (426, 49311), (639, 32874), (1278, 16437), (1917, 10958), (3834, 5479)]