3999989

素因数分解:

$7^1\times {\mathrm{43}}^1\times {\mathrm{97}}^1\times {\mathrm{137}}^1$

素因数の和:284

約数の個数: 16

約数和(自身を含む): 4760448

約数和(自身を除く): 760459

約数列:

[1, 7, 43, 97, 137, 301, 679, 959, 4171, 5891, 13289, 29197, 41237, 93023, 571427, 3999989]

約数ペア:

[(1, 3999989), (7, 571427), (43, 93023), (97, 41237), (137, 29197), (301, 13289), (679, 5891), (959, 4171)]