21144431

素因数分解:

$7^2\times {\mathrm{11}}^1\times {\mathrm{39229}}^1$

素因数の和:39254

約数の個数: 12

約数和(自身を含む): 26833320

約数和(自身を除く): 5688889

約数列:

[1, 7, 11, 49, 77, 539, 39229, 274603, 431519, 1922221, 3020633, 21144431]

約数ペア:

[(1, 21144431), (7, 3020633), (11, 1922221), (49, 431519), (77, 274603), (539, 39229)]