21300881

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{9421}}^1$

素因数の和:9464

約数の個数: 16

約数和(自身を含む): 27135360

約数和(自身を除く): 5834479

約数列:

[1, 7, 17, 19, 119, 133, 323, 2261, 9421, 65947, 160157, 178999, 1121099, 1252993, 3042983, 21300881]

約数ペア:

[(1, 21300881), (7, 3042983), (17, 1252993), (19, 1121099), (119, 178999), (133, 160157), (323, 65947), (2261, 9421)]