21000404876

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{477281929}}^1$

素因数の和:477281944

約数の個数: 12

約数和(自身を含む): 40091682120

約数和(自身を除く): 19091277244

約数列:

[1, 2, 4, 11, 22, 44, 477281929, 954563858, 1909127716, 5250101219, 10500202438, 21000404876]

約数ペア:

[(1, 21000404876), (2, 10500202438), (4, 5250101219), (11, 1909127716), (22, 954563858), (44, 477281929)]