20811768

素因数分解:

$2^3\times 3^1\times {\mathrm{103}}^1\times {\mathrm{8419}}^1$

素因数の和:8531

約数の個数: 32

約数和(自身を含む): 52540800

約数和(自身を除く): 31729032

約数列:

[1, 2, 3, 4, 6, 8, 12, 24, 103, 206, 309, 412, 618, 824, 1236, 2472, 8419, 16838, 25257, 33676, 50514, 67352, 101028, 202056, 867157, 1734314, 2601471, 3468628, 5202942, 6937256, 10405884, 20811768]

約数ペア:

[(1, 20811768), (2, 10405884), (3, 6937256), (4, 5202942), (6, 3468628), (8, 2601471), (12, 1734314), (24, 867157), (103, 202056), (206, 101028), (309, 67352), (412, 50514), (618, 33676), (824, 25257), (1236, 16838), (2472, 8419)]