20992036

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{21247}}^1$

素因数の和:21283

約数の個数: 24

約数和(自身を含む): 41646080

約数和(自身を除く): 20654044

約数列:

[1, 2, 4, 13, 19, 26, 38, 52, 76, 247, 494, 988, 21247, 42494, 84988, 276211, 403693, 552422, 807386, 1104844, 1614772, 5248009, 10496018, 20992036]

約数ペア:

[(1, 20992036), (2, 10496018), (4, 5248009), (13, 1614772), (19, 1104844), (26, 807386), (38, 552422), (52, 403693), (76, 276211), (247, 84988), (494, 42494), (988, 21247)]