81821981511

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{613}}^1\times {\mathrm{4639}}^1$

素因数の和:5420

約数の個数: 48

約数和(自身を含む): 124442572800

約数和(自身を除く): 42620591289

約数列:

[1, 3, 9, 23, 69, 139, 207, 417, 613, 1251, 1839, 3197, 4639, 5517, 9591, 13917, 14099, 28773, 41751, 42297, 85207, 106697, 126891, 255621, 320091, 644821, 766863, 960273, 1934463, 1959761, 2843707, 5803389, 5879283, 8531121, 14830883, 17637849, 25593363, 44492649, 65405261, 133477947, 196215783, 395275273, 588647349, 1185825819, 3557477457, 9091331279, 27273993837, 81821981511]

約数ペア:

[(1, 81821981511), (3, 27273993837), (9, 9091331279), (23, 3557477457), (69, 1185825819), (139, 588647349), (207, 395275273), (417, 196215783), (613, 133477947), (1251, 65405261), (1839, 44492649), (3197, 25593363), (4639, 17637849), (5517, 14830883), (9591, 8531121), (13917, 5879283), (14099, 5803389), (28773, 2843707), (41751, 1959761), (42297, 1934463), (85207, 960273), (106697, 766863), (126891, 644821), (255621, 320091)]