21276872

素因数分解:

$2^3\times {\mathrm{73}}^1\times {\mathrm{36433}}^1$

素因数の和:36512

約数の個数: 16

約数和(自身を含む): 40441740

約数和(自身を除く): 19164868

約数列:

[1, 2, 4, 8, 73, 146, 292, 584, 36433, 72866, 145732, 291464, 2659609, 5319218, 10638436, 21276872]

約数ペア:

[(1, 21276872), (2, 10638436), (4, 5319218), (8, 2659609), (73, 291464), (146, 145732), (292, 72866), (584, 36433)]