2169405

素因数分解:

$3^2\times 5^1\times 7^1\times {\mathrm{71}}^1\times {\mathrm{97}}^1$

素因数の和:186

約数の個数: 48

約数和(自身を含む): 4402944

約数和(自身を除く): 2233539

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 63, 71, 97, 105, 213, 291, 315, 355, 485, 497, 639, 679, 873, 1065, 1455, 1491, 2037, 2485, 3195, 3395, 4365, 4473, 6111, 6887, 7455, 10185, 20661, 22365, 30555, 34435, 48209, 61983, 103305, 144627, 241045, 309915, 433881, 723135, 2169405]

約数ペア:

[(1, 2169405), (3, 723135), (5, 433881), (7, 309915), (9, 241045), (15, 144627), (21, 103305), (35, 61983), (45, 48209), (63, 34435), (71, 30555), (97, 22365), (105, 20661), (213, 10185), (291, 7455), (315, 6887), (355, 6111), (485, 4473), (497, 4365), (639, 3395), (679, 3195), (873, 2485), (1065, 2037), (1455, 1491)]