20150977

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{643}}^1$

素因数の和:709

約数の個数: 24

約数和(自身を含む): 26038208

約数和(自身を除く): 5887231

約数列:

[1, 7, 11, 37, 77, 121, 259, 407, 643, 847, 2849, 4477, 4501, 7073, 23791, 31339, 49511, 77803, 166537, 261701, 544621, 1831907, 2878711, 20150977]

約数ペア:

[(1, 20150977), (7, 2878711), (11, 1831907), (37, 544621), (77, 261701), (121, 166537), (259, 77803), (407, 49511), (643, 31339), (847, 23791), (2849, 7073), (4477, 4501)]