21267554

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{138101}}^1$

素因数の和:138121

約数の個数: 16

約数和(自身を含む): 39773376

約数和(自身を除く): 18505822

約数列:

[1, 2, 7, 11, 14, 22, 77, 154, 138101, 276202, 966707, 1519111, 1933414, 3038222, 10633777, 21267554]

約数ペア:

[(1, 21267554), (2, 10633777), (7, 3038222), (11, 1933414), (14, 1519111), (22, 966707), (77, 276202), (154, 138101)]