21649650

素因数分解:

$2^1\times 3^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{13121}}^1$

素因数の和:13147

約数の個数: 48

約数和(自身を含む): 58576608

約数和(自身を除く): 36926958

約数列:

[1, 2, 3, 5, 6, 10, 11, 15, 22, 25, 30, 33, 50, 55, 66, 75, 110, 150, 165, 275, 330, 550, 825, 1650, 13121, 26242, 39363, 65605, 78726, 131210, 144331, 196815, 288662, 328025, 393630, 432993, 656050, 721655, 865986, 984075, 1443310, 1968150, 2164965, 3608275, 4329930, 7216550, 10824825, 21649650]

約数ペア:

[(1, 21649650), (2, 10824825), (3, 7216550), (5, 4329930), (6, 3608275), (10, 2164965), (11, 1968150), (15, 1443310), (22, 984075), (25, 865986), (30, 721655), (33, 656050), (50, 432993), (55, 393630), (66, 328025), (75, 288662), (110, 196815), (150, 144331), (165, 131210), (275, 78726), (330, 65605), (550, 39363), (825, 26242), (1650, 13121)]