7647291

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{4969}}^1$

素因数の和:5000

約数の個数: 20

約数和(自身を含む): 12027400

約数和(自身を除く): 4380109

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 4969, 14907, 44721, 94411, 134163, 283233, 402489, 849699, 2549097, 7647291]

約数ペア:

[(1, 7647291), (3, 2549097), (9, 849699), (19, 402489), (27, 283233), (57, 134163), (81, 94411), (171, 44721), (513, 14907), (1539, 4969)]