21163439

素因数分解:

${\mathrm{11}}^1\times {\mathrm{43}}^1\times {\mathrm{101}}^1\times {\mathrm{443}}^1$

素因数の和:598

約数の個数: 16

約数和(自身を含む): 23912064

約数和(自身を除く): 2748625

約数列:

[1, 11, 43, 101, 443, 473, 1111, 4343, 4873, 19049, 44743, 47773, 209539, 492173, 1923949, 21163439]

約数ペア:

[(1, 21163439), (11, 1923949), (43, 492173), (101, 209539), (443, 47773), (473, 44743), (1111, 19049), (4343, 4873)]