20157921136

素因数分解:

$2^4\times {\mathrm{21839}}^1\times {\mathrm{57689}}^1$

素因数の和:79536

約数の個数: 20

約数和(自身を含む): 39058437600

約数和(自身を除く): 18900516464

約数列:

[1, 2, 4, 8, 16, 21839, 43678, 57689, 87356, 115378, 174712, 230756, 349424, 461512, 923024, 1259870071, 2519740142, 5039480284, 10078960568, 20157921136]

約数ペア:

[(1, 20157921136), (2, 10078960568), (4, 5039480284), (8, 2519740142), (16, 1259870071), (21839, 923024), (43678, 461512), (57689, 349424), (87356, 230756), (115378, 174712)]