20318815

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{83}}^1\times {\mathrm{4451}}^1$

素因数の和:4550

約数の個数: 16

約数和(自身を含む): 26925696

約数和(自身を除く): 6606881

約数列:

[1, 5, 11, 55, 83, 415, 913, 4451, 4565, 22255, 48961, 244805, 369433, 1847165, 4063763, 20318815]

約数ペア:

[(1, 20318815), (5, 4063763), (11, 1847165), (55, 369433), (83, 244805), (415, 48961), (913, 22255), (4451, 4565)]