81290923

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{53}}^1\times {\mathrm{12889}}^1$

素因数の和:12966

約数の個数: 16

約数和(自身を含む): 100232640

約数和(自身を除く): 18941717

約数列:

[1, 7, 17, 53, 119, 371, 901, 6307, 12889, 90223, 219113, 683117, 1533791, 4781819, 11612989, 81290923]

約数ペア:

[(1, 81290923), (7, 11612989), (17, 4781819), (53, 1533791), (119, 683117), (371, 219113), (901, 90223), (6307, 12889)]