21250264

素因数分解:

$2^3\times 7^1\times {\mathrm{157}}^1\times {\mathrm{2417}}^1$

素因数の和:2587

約数の個数: 32

約数和(自身を含む): 45845280

約数和(自身を除く): 24595016

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 157, 314, 628, 1099, 1256, 2198, 2417, 4396, 4834, 8792, 9668, 16919, 19336, 33838, 67676, 135352, 379469, 758938, 1517876, 2656283, 3035752, 5312566, 10625132, 21250264]

約数ペア:

[(1, 21250264), (2, 10625132), (4, 5312566), (7, 3035752), (8, 2656283), (14, 1517876), (28, 758938), (56, 379469), (157, 135352), (314, 67676), (628, 33838), (1099, 19336), (1256, 16919), (2198, 9668), (2417, 8792), (4396, 4834)]