21931024

素因数分解:

$2^4\times {\mathrm{89}}^1\times {\mathrm{15401}}^1$

素因数の和:15498

約数の個数: 20

約数和(自身を含む): 42971580

約数和(自身を除く): 21040556

約数列:

[1, 2, 4, 8, 16, 89, 178, 356, 712, 1424, 15401, 30802, 61604, 123208, 246416, 1370689, 2741378, 5482756, 10965512, 21931024]

約数ペア:

[(1, 21931024), (2, 10965512), (4, 5482756), (8, 2741378), (16, 1370689), (89, 246416), (178, 123208), (356, 61604), (712, 30802), (1424, 15401)]