21690292

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{449}}^1\times {\mathrm{929}}^1$

素因数の和:1395

約数の個数: 24

約数和(自身を含む): 41013000

約数和(自身を除く): 19322708

約数列:

[1, 2, 4, 13, 26, 52, 449, 898, 929, 1796, 1858, 3716, 5837, 11674, 12077, 23348, 24154, 48308, 417121, 834242, 1668484, 5422573, 10845146, 21690292]

約数ペア:

[(1, 21690292), (2, 10845146), (4, 5422573), (13, 1668484), (26, 834242), (52, 417121), (449, 48308), (898, 24154), (929, 23348), (1796, 12077), (1858, 11674), (3716, 5837)]