18753185

素因数分解:

$5^1\times {\mathrm{11}}^2\times {\mathrm{139}}^1\times {\mathrm{223}}^1$

素因数の和:389

約数の個数: 24

約数和(自身を含む): 25025280

約数和(自身を除く): 6272095

約数列:

[1, 5, 11, 55, 121, 139, 223, 605, 695, 1115, 1529, 2453, 7645, 12265, 16819, 26983, 30997, 84095, 134915, 154985, 340967, 1704835, 3750637, 18753185]

約数ペア:

[(1, 18753185), (5, 3750637), (11, 1704835), (55, 340967), (121, 154985), (139, 134915), (223, 84095), (605, 30997), (695, 26983), (1115, 16819), (1529, 12265), (2453, 7645)]