8128127

素因数分解:

$7^1\times {\mathrm{41}}^1\times {\mathrm{127}}^1\times {\mathrm{223}}^1$

素因数の和:398

約数の個数: 16

約数和(自身を含む): 9633792

約数和(自身を除く): 1505665

約数列:

[1, 7, 41, 127, 223, 287, 889, 1561, 5207, 9143, 28321, 36449, 64001, 198247, 1161161, 8128127]

約数ペア:

[(1, 8128127), (7, 1161161), (41, 198247), (127, 64001), (223, 36449), (287, 28321), (889, 9143), (1561, 5207)]