20489235

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{179}}^1\times {\mathrm{587}}^1$

素因数の和:787

約数の個数: 32

約数和(自身を含む): 35562240

約数和(自身を除く): 15073005

約数列:

[1, 3, 5, 13, 15, 39, 65, 179, 195, 537, 587, 895, 1761, 2327, 2685, 2935, 6981, 7631, 8805, 11635, 22893, 34905, 38155, 105073, 114465, 315219, 525365, 1365949, 1576095, 4097847, 6829745, 20489235]

約数ペア:

[(1, 20489235), (3, 6829745), (5, 4097847), (13, 1576095), (15, 1365949), (39, 525365), (65, 315219), (179, 114465), (195, 105073), (537, 38155), (587, 34905), (895, 22893), (1761, 11635), (2327, 8805), (2685, 7631), (2935, 6981)]