21148289

素因数分解:

${\mathrm{17}}^1\times {\mathrm{101}}^1\times {\mathrm{109}}^1\times {\mathrm{113}}^1$

素因数の和:340

約数の個数: 16

約数和(自身を含む): 23023440

約数和(自身を除く): 1875151

約数列:

[1, 17, 101, 109, 113, 1717, 1853, 1921, 11009, 11413, 12317, 187153, 194021, 209389, 1244017, 21148289]

約数ペア:

[(1, 21148289), (17, 1244017), (101, 209389), (109, 194021), (113, 187153), (1717, 12317), (1853, 11413), (1921, 11009)]