27985431

素因数分解:

$3^1\times {\mathrm{37}}^1\times {\mathrm{53}}^1\times {\mathrm{67}}^1\times {\mathrm{71}}^1$

素因数の和:231

約数の個数: 32

約数和(自身を含む): 40186368

約数和(自身を除く): 12200937

約数列:

[1, 3, 37, 53, 67, 71, 111, 159, 201, 213, 1961, 2479, 2627, 3551, 3763, 4757, 5883, 7437, 7881, 10653, 11289, 14271, 131387, 139231, 176009, 252121, 394161, 417693, 528027, 756363, 9328477, 27985431]

約数ペア:

[(1, 27985431), (3, 9328477), (37, 756363), (53, 528027), (67, 417693), (71, 394161), (111, 252121), (159, 176009), (201, 139231), (213, 131387), (1961, 14271), (2479, 11289), (2627, 10653), (3551, 7881), (3763, 7437), (4757, 5883)]