21729268

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{353}}^1\times {\mathrm{1399}}^1$

素因数の和:1767

約数の個数: 24

約数和(自身を含む): 41630400

約数和(自身を除く): 19901132

約数列:

[1, 2, 4, 11, 22, 44, 353, 706, 1399, 1412, 2798, 3883, 5596, 7766, 15389, 15532, 30778, 61556, 493847, 987694, 1975388, 5432317, 10864634, 21729268]

約数ペア:

[(1, 21729268), (2, 10864634), (4, 5432317), (11, 1975388), (22, 987694), (44, 493847), (353, 61556), (706, 30778), (1399, 15532), (1412, 15389), (2798, 7766), (3883, 5596)]