21089852

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{20357}}^1$

素因数の和:20405

約数の個数: 24

約数和(自身を含む): 43321824

約数和(自身を除く): 22231972

約数列:

[1, 2, 4, 7, 14, 28, 37, 74, 148, 259, 518, 1036, 20357, 40714, 81428, 142499, 284998, 569996, 753209, 1506418, 3012836, 5272463, 10544926, 21089852]

約数ペア:

[(1, 21089852), (2, 10544926), (4, 5272463), (7, 3012836), (14, 1506418), (28, 753209), (37, 569996), (74, 284998), (148, 142499), (259, 81428), (518, 40714), (1036, 20357)]