47921321

素因数分解:

$7^1\times {\mathrm{79}}^1\times {\mathrm{193}}^1\times {\mathrm{449}}^1$

素因数の和:728

約数の個数: 16

約数和(自身を含む): 55872000

約数和(自身を除く): 7950679

約数列:

[1, 7, 79, 193, 449, 553, 1351, 3143, 15247, 35471, 86657, 106729, 248297, 606599, 6845903, 47921321]

約数ペア:

[(1, 47921321), (7, 6845903), (79, 606599), (193, 248297), (449, 106729), (553, 86657), (1351, 35471), (3143, 15247)]