21164468

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{353}}^1\times {\mathrm{1153}}^1$

素因数の和:1523

約数の個数: 24

約数和(自身を含む): 40034568

約数和(自身を除く): 18870100

約数列:

[1, 2, 4, 13, 26, 52, 353, 706, 1153, 1412, 2306, 4589, 4612, 9178, 14989, 18356, 29978, 59956, 407009, 814018, 1628036, 5291117, 10582234, 21164468]

約数ペア:

[(1, 21164468), (2, 10582234), (4, 5291117), (13, 1628036), (26, 814018), (52, 407009), (353, 59956), (706, 29978), (1153, 18356), (1412, 14989), (2306, 9178), (4589, 4612)]