28911027

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{139}}^1$

素因数の和:291

約数の個数: 32

約数和(自身を含む): 42336000

約数和(自身を除く): 13424973

約数列:

[1, 3, 19, 41, 57, 89, 123, 139, 267, 417, 779, 1691, 2337, 2641, 3649, 5073, 5699, 7923, 10947, 12371, 17097, 37113, 69331, 108281, 207993, 235049, 324843, 507211, 705147, 1521633, 9637009, 28911027]

約数ペア:

[(1, 28911027), (3, 9637009), (19, 1521633), (41, 705147), (57, 507211), (89, 324843), (123, 235049), (139, 207993), (267, 108281), (417, 69331), (779, 37113), (1691, 17097), (2337, 12371), (2641, 10947), (3649, 7923), (5073, 5699)]