20684790

素因数分解:

$2^1\times 3^2\times 5^1\times 7^1\times {\mathrm{32833}}^1$

素因数の和:32853

約数の個数: 48

約数和(自身を含む): 61465248

約数和(自身を除く): 40780458

約数列:

[1, 2, 3, 5, 6, 7, 9, 10, 14, 15, 18, 21, 30, 35, 42, 45, 63, 70, 90, 105, 126, 210, 315, 630, 32833, 65666, 98499, 164165, 196998, 229831, 295497, 328330, 459662, 492495, 590994, 689493, 984990, 1149155, 1378986, 1477485, 2068479, 2298310, 2954970, 3447465, 4136958, 6894930, 10342395, 20684790]

約数ペア:

[(1, 20684790), (2, 10342395), (3, 6894930), (5, 4136958), (6, 3447465), (7, 2954970), (9, 2298310), (10, 2068479), (14, 1477485), (15, 1378986), (18, 1149155), (21, 984990), (30, 689493), (35, 590994), (42, 492495), (45, 459662), (63, 328330), (70, 295497), (90, 229831), (105, 196998), (126, 164165), (210, 98499), (315, 65666), (630, 32833)]