21006964

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{15401}}^1$

素因数の和:15447

約数の個数: 24

約数和(自身を含む): 41400576

約数和(自身を除く): 20393612

約数列:

[1, 2, 4, 11, 22, 31, 44, 62, 124, 341, 682, 1364, 15401, 30802, 61604, 169411, 338822, 477431, 677644, 954862, 1909724, 5251741, 10503482, 21006964]

約数ペア:

[(1, 21006964), (2, 10503482), (4, 5251741), (11, 1909724), (22, 954862), (31, 677644), (44, 477431), (62, 338822), (124, 169411), (341, 61604), (682, 30802), (1364, 15401)]