21236555

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{167}}^1\times {\mathrm{877}}^1$

素因数の和:1078

約数の個数: 16

約数和(自身を含む): 26550720

約数和(自身を除く): 5314165

約数列:

[1, 5, 29, 145, 167, 835, 877, 4385, 4843, 24215, 25433, 127165, 146459, 732295, 4247311, 21236555]

約数ペア:

[(1, 21236555), (5, 4247311), (29, 732295), (145, 146459), (167, 127165), (835, 25433), (877, 24215), (4385, 4843)]