18078977

素因数分解:

$7^1\times {\mathrm{29}}^2\times {\mathrm{37}}^1\times {\mathrm{83}}^1$

素因数の和:185

約数の個数: 24

約数和(自身を含む): 22241856

約数和(自身を除く): 4162879

約数列:

[1, 7, 29, 37, 83, 203, 259, 581, 841, 1073, 2407, 3071, 5887, 7511, 16849, 21497, 31117, 69803, 89059, 217819, 488621, 623413, 2582711, 18078977]

約数ペア:

[(1, 18078977), (7, 2582711), (29, 623413), (37, 488621), (83, 217819), (203, 89059), (259, 69803), (581, 31117), (841, 21497), (1073, 16849), (2407, 7511), (3071, 5887)]