21508772

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{43}}^1\times {\mathrm{5437}}^1$

素因数の和:5507

約数の個数: 24

約数和(自身を含む): 40197696

約数和(自身を除く): 18688924

約数列:

[1, 2, 4, 23, 43, 46, 86, 92, 172, 989, 1978, 3956, 5437, 10874, 21748, 125051, 233791, 250102, 467582, 500204, 935164, 5377193, 10754386, 21508772]

約数ペア:

[(1, 21508772), (2, 10754386), (4, 5377193), (23, 935164), (43, 500204), (46, 467582), (86, 250102), (92, 233791), (172, 125051), (989, 21748), (1978, 10874), (3956, 5437)]