21396464

素因数分解:

$2^4\times {\mathrm{281}}^1\times {\mathrm{4759}}^1$

素因数の和:5048

約数の個数: 20

約数和(自身を含む): 41611920

約数和(自身を除く): 20215456

約数列:

[1, 2, 4, 8, 16, 281, 562, 1124, 2248, 4496, 4759, 9518, 19036, 38072, 76144, 1337279, 2674558, 5349116, 10698232, 21396464]

約数ペア:

[(1, 21396464), (2, 10698232), (4, 5349116), (8, 2674558), (16, 1337279), (281, 76144), (562, 38072), (1124, 19036), (2248, 9518), (4496, 4759)]