21000481201

素因数分解:

$7^2\times {\mathrm{37}}^1\times {\mathrm{103}}^1\times {\mathrm{112459}}^1$

素因数の和:112613

約数の個数: 24

約数和(自身を含む): 25333189440

約数和(自身を除く): 4332708239

約数列:

[1, 7, 37, 49, 103, 259, 721, 1813, 3811, 5047, 26677, 112459, 186739, 787213, 4160983, 5510491, 11583277, 29126881, 81082939, 203888167, 428581249, 567580573, 3000068743, 21000481201]

約数ペア:

[(1, 21000481201), (7, 3000068743), (37, 567580573), (49, 428581249), (103, 203888167), (259, 81082939), (721, 29126881), (1813, 11583277), (3811, 5510491), (5047, 4160983), (26677, 787213), (112459, 186739)]