20921021

素因数分解:

${\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{4673}}^1$

素因数の和:4732

約数の個数: 12

約数和(自身を含む): 23622396

約数和(自身を除く): 2701375

約数列:

[1, 11, 37, 121, 407, 4477, 4673, 51403, 172901, 565433, 1901911, 20921021]

約数ペア:

[(1, 20921021), (11, 1901911), (37, 565433), (121, 172901), (407, 51403), (4477, 4673)]