18052881

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{2521}}^1$

素因数の和:2573

約数の個数: 32

約数和(自身を含む): 30990336

約数和(自身を除く): 12937455

約数列:

[1, 3, 7, 11, 21, 31, 33, 77, 93, 217, 231, 341, 651, 1023, 2387, 2521, 7161, 7563, 17647, 27731, 52941, 78151, 83193, 194117, 234453, 547057, 582351, 859661, 1641171, 2578983, 6017627, 18052881]

約数ペア:

[(1, 18052881), (3, 6017627), (7, 2578983), (11, 1641171), (21, 859661), (31, 582351), (33, 547057), (77, 234453), (93, 194117), (217, 83193), (231, 78151), (341, 52941), (651, 27731), (1023, 17647), (2387, 7563), (2521, 7161)]