20728772

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{311}}^1\times {\mathrm{877}}^1$

素因数の和:1211

約数の個数: 24

約数和(自身を含む): 38351040

約数和(自身を除く): 17622268

約数列:

[1, 2, 4, 19, 38, 76, 311, 622, 877, 1244, 1754, 3508, 5909, 11818, 16663, 23636, 33326, 66652, 272747, 545494, 1090988, 5182193, 10364386, 20728772]

約数ペア:

[(1, 20728772), (2, 10364386), (4, 5182193), (19, 1090988), (38, 545494), (76, 272747), (311, 66652), (622, 33326), (877, 23636), (1244, 16663), (1754, 11818), (3508, 5909)]