21583719

素因数分解:

$3^3\times {\mathrm{31}}^1\times {\mathrm{107}}^1\times {\mathrm{241}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 33454080

約数和(自身を除く): 11870361

約数列:

[1, 3, 9, 27, 31, 93, 107, 241, 279, 321, 723, 837, 963, 2169, 2889, 3317, 6507, 7471, 9951, 22413, 25787, 29853, 67239, 77361, 89559, 201717, 232083, 696249, 799397, 2398191, 7194573, 21583719]

約数ペア:

[(1, 21583719), (3, 7194573), (9, 2398191), (27, 799397), (31, 696249), (93, 232083), (107, 201717), (241, 89559), (279, 77361), (321, 67239), (723, 29853), (837, 25787), (963, 22413), (2169, 9951), (2889, 7471), (3317, 6507)]