21782970

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{22003}}^1$

素因数の和:22027

約数の個数: 48

約数和(自身を含む): 61787232

約数和(自身を除く): 40004262

約数列:

[1, 2, 3, 5, 6, 9, 10, 11, 15, 18, 22, 30, 33, 45, 55, 66, 90, 99, 110, 165, 198, 330, 495, 990, 22003, 44006, 66009, 110015, 132018, 198027, 220030, 242033, 330045, 396054, 484066, 660090, 726099, 990135, 1210165, 1452198, 1980270, 2178297, 2420330, 3630495, 4356594, 7260990, 10891485, 21782970]

約数ペア:

[(1, 21782970), (2, 10891485), (3, 7260990), (5, 4356594), (6, 3630495), (9, 2420330), (10, 2178297), (11, 1980270), (15, 1452198), (18, 1210165), (22, 990135), (30, 726099), (33, 660090), (45, 484066), (55, 396054), (66, 330045), (90, 242033), (99, 220030), (110, 198027), (165, 132018), (198, 110015), (330, 66009), (495, 44006), (990, 22003)]