28687321

素因数分解:

${\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{73}}^1$

素因数の和:185

約数の個数: 32

約数和(自身を含む): 34643840

約数和(自身を除く): 5956519

約数列:

[1, 13, 19, 37, 43, 73, 247, 481, 559, 703, 817, 949, 1387, 1591, 2701, 3139, 9139, 10621, 18031, 20683, 30229, 35113, 40807, 51319, 59641, 116143, 392977, 667147, 775333, 1509859, 2206717, 28687321]

約数ペア:

[(1, 28687321), (13, 2206717), (19, 1509859), (37, 775333), (43, 667147), (73, 392977), (247, 116143), (481, 59641), (559, 51319), (703, 40807), (817, 35113), (949, 30229), (1387, 20683), (1591, 18031), (2701, 10621), (3139, 9139)]