28001805

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{8447}}^1$

素因数の和:8485

約数の個数: 32

約数和(自身を含む): 51093504

約数和(自身を除く): 23091699

約数列:

[1, 3, 5, 13, 15, 17, 39, 51, 65, 85, 195, 221, 255, 663, 1105, 3315, 8447, 25341, 42235, 109811, 126705, 143599, 329433, 430797, 549055, 717995, 1647165, 1866787, 2153985, 5600361, 9333935, 28001805]

約数ペア:

[(1, 28001805), (3, 9333935), (5, 5600361), (13, 2153985), (15, 1866787), (17, 1647165), (39, 717995), (51, 549055), (65, 430797), (85, 329433), (195, 143599), (221, 126705), (255, 109811), (663, 42235), (1105, 25341), (3315, 8447)]