21559377

素因数分解:

$3^1\times 7^1\times {\mathrm{631}}^1\times {\mathrm{1627}}^1$

素因数の和:2268

約数の個数: 16

約数和(自身を含む): 32924672

約数和(自身を除く): 11365295

約数列:

[1, 3, 7, 21, 631, 1627, 1893, 4417, 4881, 11389, 13251, 34167, 1026637, 3079911, 7186459, 21559377]

約数ペア:

[(1, 21559377), (3, 7186459), (7, 3079911), (21, 1026637), (631, 34167), (1627, 13251), (1893, 11389), (4417, 4881)]