20291237721

素因数分解:

$3^3\times {\mathrm{23}}^1\times {\mathrm{2591}}^1\times {\mathrm{12611}}^1$

素因数の和:15234

約数の個数: 32

約数和(自身を含む): 31382691840

約数和(自身を除く): 11091454119

約数列:

[1, 3, 9, 23, 27, 69, 207, 621, 2591, 7773, 12611, 23319, 37833, 59593, 69957, 113499, 178779, 290053, 340497, 536337, 870159, 1609011, 2610477, 7831431, 32675101, 98025303, 294075909, 751527323, 882227727, 2254581969, 6763745907, 20291237721]

約数ペア:

[(1, 20291237721), (3, 6763745907), (9, 2254581969), (23, 882227727), (27, 751527323), (69, 294075909), (207, 98025303), (621, 32675101), (2591, 7831431), (7773, 2610477), (12611, 1609011), (23319, 870159), (37833, 536337), (59593, 340497), (69957, 290053), (113499, 178779)]