28209933

素因数分解:

$3^2\times {\mathrm{71}}^1\times {\mathrm{131}}^1\times {\mathrm{337}}^1$

素因数の和:545

約数の個数: 24

約数和(自身を含む): 41760576

約数和(自身を除く): 13550643

約数列:

[1, 3, 9, 71, 131, 213, 337, 393, 639, 1011, 1179, 3033, 9301, 23927, 27903, 44147, 71781, 83709, 132441, 215343, 397323, 3134437, 9403311, 28209933]

約数ペア:

[(1, 28209933), (3, 9403311), (9, 3134437), (71, 397323), (131, 215343), (213, 132441), (337, 83709), (393, 71781), (639, 44147), (1011, 27903), (1179, 23927), (3033, 9301)]