67491991

素因数分解:

$7^1\times {\mathrm{31}}^2\times {\mathrm{79}}^1\times {\mathrm{127}}^1$

素因数の和:275

約数の個数: 24

約数和(自身を含む): 81346560

約数和(自身を除く): 13854569

約数列:

[1, 7, 31, 79, 127, 217, 553, 889, 961, 2449, 3937, 6727, 10033, 17143, 27559, 70231, 75919, 122047, 311023, 531433, 854329, 2177161, 9641713, 67491991]

約数ペア:

[(1, 67491991), (7, 9641713), (31, 2177161), (79, 854329), (127, 531433), (217, 311023), (553, 122047), (889, 75919), (961, 70231), (2449, 27559), (3937, 17143), (6727, 10033)]