21175121

素因数分解:

${\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{1259}}^1$

素因数の和:1420

約数の個数: 12

約数和(自身を含む): 23461200

約数和(自身を除く): 2286079

約数列:

[1, 11, 121, 139, 1259, 1529, 13849, 16819, 152339, 175001, 1925011, 21175121]

約数ペア:

[(1, 21175121), (11, 1925011), (121, 175001), (139, 152339), (1259, 16819), (1529, 13849)]