16986977

素因数分解:

$7^2\times {\mathrm{31}}^1\times {\mathrm{53}}^1\times {\mathrm{211}}^1$

素因数の和:309

約数の個数: 24

約数和(自身を含む): 20881152

約数和(自身を除く): 3894175

約数列:

[1, 7, 31, 49, 53, 211, 217, 371, 1477, 1519, 1643, 2597, 6541, 10339, 11183, 11501, 45787, 78281, 80507, 320509, 346673, 547967, 2426711, 16986977]

約数ペア:

[(1, 16986977), (7, 2426711), (31, 547967), (49, 346673), (53, 320509), (211, 80507), (217, 78281), (371, 45787), (1477, 11501), (1519, 11183), (1643, 10339), (2597, 6541)]