19989783

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8779}}^1$

素因数の和:8819

約数の個数: 24

約数和(自身を含む): 32872320

約数和(自身を除く): 12882537

約数列:

[1, 3, 9, 11, 23, 33, 69, 99, 207, 253, 759, 2277, 8779, 26337, 79011, 96569, 201917, 289707, 605751, 869121, 1817253, 2221087, 6663261, 19989783]

約数ペア:

[(1, 19989783), (3, 6663261), (9, 2221087), (11, 1817253), (23, 869121), (33, 605751), (69, 289707), (99, 201917), (207, 96569), (253, 79011), (759, 26337), (2277, 8779)]