18937149

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{73}}^1\times {\mathrm{1123}}^1$

素因数の和:1217

約数の個数: 32

約数和(自身を含む): 31939584

約数和(自身を除く): 13002435

約数列:

[1, 3, 7, 11, 21, 33, 73, 77, 219, 231, 511, 803, 1123, 1533, 2409, 3369, 5621, 7861, 12353, 16863, 23583, 37059, 81979, 86471, 245937, 259413, 573853, 901769, 1721559, 2705307, 6312383, 18937149]

約数ペア:

[(1, 18937149), (3, 6312383), (7, 2705307), (11, 1721559), (21, 901769), (33, 573853), (73, 259413), (77, 245937), (219, 86471), (231, 81979), (511, 37059), (803, 23583), (1123, 16863), (1533, 12353), (2409, 7861), (3369, 5621)]