21494876

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1171}}^1$

素因数の和:1541

約数の個数: 24

約数和(自身を含む): 40659024

約数和(自身を除く): 19164148

約数列:

[1, 2, 4, 13, 26, 52, 353, 706, 1171, 1412, 2342, 4589, 4684, 9178, 15223, 18356, 30446, 60892, 413363, 826726, 1653452, 5373719, 10747438, 21494876]

約数ペア:

[(1, 21494876), (2, 10747438), (4, 5373719), (13, 1653452), (26, 826726), (52, 413363), (353, 60892), (706, 30446), (1171, 18356), (1412, 15223), (2342, 9178), (4589, 4684)]