27987135

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{2389}}^1$

素因数の和:2479

約数の個数: 32

約数和(自身を含む): 49559040

約数和(自身を除く): 21571905

約数列:

[1, 3, 5, 11, 15, 33, 55, 71, 165, 213, 355, 781, 1065, 2343, 2389, 3905, 7167, 11715, 11945, 26279, 35835, 78837, 131395, 169619, 394185, 508857, 848095, 1865809, 2544285, 5597427, 9329045, 27987135]

約数ペア:

[(1, 27987135), (3, 9329045), (5, 5597427), (11, 2544285), (15, 1865809), (33, 848095), (55, 508857), (71, 394185), (165, 169619), (213, 131395), (355, 78837), (781, 35835), (1065, 26279), (2343, 11945), (2389, 11715), (3905, 7167)]