21821899

素因数分解:

${\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{263}}^1\times {\mathrm{397}}^1$

素因数の和:690

約数の個数: 16

約数和(自身を含む): 25217280

約数和(自身を除く): 3395381

約数列:

[1, 11, 19, 209, 263, 397, 2893, 4367, 4997, 7543, 54967, 82973, 104411, 1148521, 1983809, 21821899]

約数ペア:

[(1, 21821899), (11, 1983809), (19, 1148521), (209, 104411), (263, 82973), (397, 54967), (2893, 7543), (4367, 4997)]