21759541

素因数分解:

${\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1\times {\mathrm{101}}^1$

素因数の和:189

約数の個数: 32

約数和(自身を含む): 26438400

約数和(自身を除く): 4678859

約数列:

[1, 17, 19, 23, 29, 101, 323, 391, 437, 493, 551, 667, 1717, 1919, 2323, 2929, 7429, 9367, 11339, 12673, 32623, 39491, 44137, 49793, 55651, 67367, 215441, 750329, 946067, 1145239, 1279973, 21759541]

約数ペア:

[(1, 21759541), (17, 1279973), (19, 1145239), (23, 946067), (29, 750329), (101, 215441), (323, 67367), (391, 55651), (437, 49793), (493, 44137), (551, 39491), (667, 32623), (1717, 12673), (1919, 11339), (2323, 9367), (2929, 7429)]