18809545

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{1777}}^1$

素因数の和:1884

約数の個数: 16

約数和(自身を含む): 23682960

約数和(自身を除く): 4873415

約数列:

[1, 5, 29, 73, 145, 365, 1777, 2117, 8885, 10585, 51533, 129721, 257665, 648605, 3761909, 18809545]

約数ペア:

[(1, 18809545), (5, 3761909), (29, 648605), (73, 257665), (145, 129721), (365, 51533), (1777, 10585), (2117, 8885)]