81003027

素因数分解:

$3^1\times 7^2\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{281}}^1$

素因数の和:388

約数の個数: 48

約数和(自身を含む): 131935392

約数和(自身を除く): 50932365

約数列:

[1, 3, 7, 21, 37, 49, 53, 111, 147, 159, 259, 281, 371, 777, 843, 1113, 1813, 1961, 1967, 2597, 5439, 5883, 5901, 7791, 10397, 13727, 13769, 14893, 31191, 41181, 41307, 44679, 72779, 96089, 104251, 218337, 288267, 312753, 509453, 551041, 729757, 1528359, 1653123, 2189271, 3857287, 11571861, 27001009, 81003027]

約数ペア:

[(1, 81003027), (3, 27001009), (7, 11571861), (21, 3857287), (37, 2189271), (49, 1653123), (53, 1528359), (111, 729757), (147, 551041), (159, 509453), (259, 312753), (281, 288267), (371, 218337), (777, 104251), (843, 96089), (1113, 72779), (1813, 44679), (1961, 41307), (1967, 41181), (2597, 31191), (5439, 14893), (5883, 13769), (5901, 13727), (7791, 10397)]