21000985412

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477295123}}^1$

素因数の和:477295138

約数の個数: 12

約数和(自身を含む): 40092790416

約数和(自身を除く): 19091805004

約数列:

[1, 2, 4, 11, 22, 44, 477295123, 954590246, 1909180492, 5250246353, 10500492706, 21000985412]

約数ペア:

[(1, 21000985412), (2, 10500492706), (4, 5250246353), (11, 1909180492), (22, 954590246), (44, 477295123)]