87515841

素因数分解:

$3^1\times 7^1\times {\mathrm{37}}^1\times {\mathrm{163}}^1\times {\mathrm{691}}^1$

素因数の和:901

約数の個数: 32

約数和(自身を含む): 138001408

約数和(自身を除く): 50485567

約数列:

[1, 3, 7, 21, 37, 111, 163, 259, 489, 691, 777, 1141, 2073, 3423, 4837, 6031, 14511, 18093, 25567, 42217, 76701, 112633, 126651, 178969, 337899, 536907, 788431, 2365293, 4167421, 12502263, 29171947, 87515841]

約数ペア:

[(1, 87515841), (3, 29171947), (7, 12502263), (21, 4167421), (37, 2365293), (111, 788431), (163, 536907), (259, 337899), (489, 178969), (691, 126651), (777, 112633), (1141, 76701), (2073, 42217), (3423, 25567), (4837, 18093), (6031, 14511)]