21288964

素因数分解:

$2^2\times {\mathrm{17}}^1\times {\mathrm{337}}^1\times {\mathrm{929}}^1$

素因数の和:1287

約数の個数: 24

約数和(自身を含む): 39606840

約数和(自身を除く): 18317876

約数列:

[1, 2, 4, 17, 34, 68, 337, 674, 929, 1348, 1858, 3716, 5729, 11458, 15793, 22916, 31586, 63172, 313073, 626146, 1252292, 5322241, 10644482, 21288964]

約数ペア:

[(1, 21288964), (2, 10644482), (4, 5322241), (17, 1252292), (34, 626146), (68, 313073), (337, 63172), (674, 31586), (929, 22916), (1348, 15793), (1858, 11458), (3716, 5729)]