21890297

素因数分解:

${\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{3257}}^1$

素因数の和:3328

約数の個数: 16

約数和(自身を含む): 26272512

約数和(自身を除く): 4382215

約数列:

[1, 11, 13, 47, 143, 517, 611, 3257, 6721, 35827, 42341, 153079, 465751, 1683869, 1990027, 21890297]

約数ペア:

[(1, 21890297), (11, 1990027), (13, 1683869), (47, 465751), (143, 153079), (517, 42341), (611, 35827), (3257, 6721)]