21748041

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{5003}}^1$

素因数の和:5042

約数の個数: 32

約数和(自身を含む): 38430720

約数和(自身を除く): 16682679

約数列:

[1, 3, 7, 9, 21, 23, 27, 63, 69, 161, 189, 207, 483, 621, 1449, 4347, 5003, 15009, 35021, 45027, 105063, 115069, 135081, 315189, 345207, 805483, 945567, 1035621, 2416449, 3106863, 7249347, 21748041]

約数ペア:

[(1, 21748041), (3, 7249347), (7, 3106863), (9, 2416449), (21, 1035621), (23, 945567), (27, 805483), (63, 345207), (69, 315189), (161, 135081), (189, 115069), (207, 105063), (483, 45027), (621, 35021), (1449, 15009), (4347, 5003)]