12880749

素因数分解:

$3^1\times 7^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1\times {\mathrm{163}}^1$

素因数の和:297

約数の個数: 32

約数和(自身を含む): 20404224

約数和(自身を除く): 7523475

約数列:

[1, 3, 7, 21, 53, 71, 159, 163, 213, 371, 489, 497, 1113, 1141, 1491, 3423, 3763, 8639, 11289, 11573, 25917, 26341, 34719, 60473, 79023, 81011, 181419, 243033, 613369, 1840107, 4293583, 12880749]

約数ペア:

[(1, 12880749), (3, 4293583), (7, 1840107), (21, 613369), (53, 243033), (71, 181419), (159, 81011), (163, 79023), (213, 60473), (371, 34719), (489, 26341), (497, 25917), (1113, 11573), (1141, 11289), (1491, 8639), (3423, 3763)]