21807611

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{7129}}^1$

素因数の和:7178

約数の個数: 16

約数和(自身を含む): 27379200

約数和(自身を除く): 5571589

約数列:

[1, 7, 19, 23, 133, 161, 437, 3059, 7129, 49903, 135451, 163967, 948157, 1147769, 3115373, 21807611]

約数ペア:

[(1, 21807611), (7, 3115373), (19, 1147769), (23, 948157), (133, 163967), (161, 135451), (437, 49903), (3059, 7129)]