21061328

素因数分解:

$2^4\times {\mathrm{101}}^1\times {\mathrm{13033}}^1$

素因数の和:13142

約数の個数: 20

約数和(自身を含む): 41213508

約数和(自身を除く): 20152180

約数列:

[1, 2, 4, 8, 16, 101, 202, 404, 808, 1616, 13033, 26066, 52132, 104264, 208528, 1316333, 2632666, 5265332, 10530664, 21061328]

約数ペア:

[(1, 21061328), (2, 10530664), (4, 5265332), (8, 2632666), (16, 1316333), (101, 208528), (202, 104264), (404, 52132), (808, 26066), (1616, 13033)]