20742912003

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{41}}^1\times {\mathrm{89}}^1\times {\mathrm{172259}}^1$

素因数の和:172403

約数の個数: 32

約数和(自身を含む): 31254854400

約数和(自身を除く): 10511942397

約数列:

[1, 3, 11, 33, 41, 89, 123, 267, 451, 979, 1353, 2937, 3649, 10947, 40139, 120417, 172259, 516777, 1894849, 5684547, 7062619, 15331051, 21187857, 45993153, 77688809, 168641561, 233066427, 505924683, 628573091, 1885719273, 6914304001, 20742912003]

約数ペア:

[(1, 20742912003), (3, 6914304001), (11, 1885719273), (33, 628573091), (41, 505924683), (89, 233066427), (123, 168641561), (267, 77688809), (451, 45993153), (979, 21187857), (1353, 15331051), (2937, 7062619), (3649, 5684547), (10947, 1894849), (40139, 516777), (120417, 172259)]