21075650

素因数分解:

$2^1\times 5^2\times {\mathrm{127}}^1\times {\mathrm{3319}}^1$

素因数の和:3458

約数の個数: 24

約数和(自身を含む): 39521280

約数和(自身を除く): 18445630

約数列:

[1, 2, 5, 10, 25, 50, 127, 254, 635, 1270, 3175, 3319, 6350, 6638, 16595, 33190, 82975, 165950, 421513, 843026, 2107565, 4215130, 10537825, 21075650]

約数ペア:

[(1, 21075650), (2, 10537825), (5, 4215130), (10, 2107565), (25, 843026), (50, 421513), (127, 165950), (254, 82975), (635, 33190), (1270, 16595), (3175, 6638), (3319, 6350)]