21145844

素因数分解:

$2^2\times {\mathrm{31}}^2\times {\mathrm{5501}}^1$

素因数の和:5567

約数の個数: 18

約数和(自身を含む): 38244402

約数和(自身を除く): 17098558

約数列:

[1, 2, 4, 31, 62, 124, 961, 1922, 3844, 5501, 11002, 22004, 170531, 341062, 682124, 5286461, 10572922, 21145844]

約数ペア:

[(1, 21145844), (2, 10572922), (4, 5286461), (31, 682124), (62, 341062), (124, 170531), (961, 22004), (1922, 11002), (3844, 5501)]