21139312

素因数分解:

$2^4\times {\mathrm{1033}}^1\times {\mathrm{1279}}^1$

素因数の和:2320

約数の個数: 20

約数和(自身を含む): 41029120

約数和(自身を除く): 19889808

約数列:

[1, 2, 4, 8, 16, 1033, 1279, 2066, 2558, 4132, 5116, 8264, 10232, 16528, 20464, 1321207, 2642414, 5284828, 10569656, 21139312]

約数ペア:

[(1, 21139312), (2, 10569656), (4, 5284828), (8, 2642414), (16, 1321207), (1033, 20464), (1279, 16528), (2066, 10232), (2558, 8264), (4132, 5116)]