2152423

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{109}}^1$

素因数の和:167

約数の個数: 24

約数和(自身を含む): 2808960

約数和(自身を除く): 656537

約数列:

[1, 7, 13, 31, 49, 91, 109, 217, 403, 637, 763, 1417, 1519, 2821, 3379, 5341, 9919, 19747, 23653, 43927, 69433, 165571, 307489, 2152423]

約数ペア:

[(1, 2152423), (7, 307489), (13, 165571), (31, 69433), (49, 43927), (91, 23653), (109, 19747), (217, 9919), (403, 5341), (637, 3379), (763, 2821), (1417, 1519)]