20591877

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{113}}^1\times {\mathrm{139}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 30643200

約数和(自身を除く): 10051323

約数列:

[1, 3, 19, 23, 57, 69, 113, 139, 339, 417, 437, 1311, 2147, 2599, 2641, 3197, 6441, 7797, 7923, 9591, 15707, 47121, 49381, 60743, 148143, 182229, 298433, 361261, 895299, 1083783, 6863959, 20591877]

約数ペア:

[(1, 20591877), (3, 6863959), (19, 1083783), (23, 895299), (57, 361261), (69, 298433), (113, 182229), (139, 148143), (339, 60743), (417, 49381), (437, 47121), (1311, 15707), (2147, 9591), (2599, 7923), (2641, 7797), (3197, 6441)]