27991579

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^3\times {\mathrm{53}}^1$

素因数の和:128

約数の個数: 32

約数和(自身を含む): 37532160

約数和(自身を除く): 9540581

約数列:

[1, 7, 11, 19, 53, 77, 133, 209, 361, 371, 583, 1007, 1463, 2527, 3971, 4081, 6859, 7049, 11077, 19133, 27797, 48013, 75449, 77539, 133931, 210463, 363527, 528143, 1473241, 2544689, 3998797, 27991579]

約数ペア:

[(1, 27991579), (7, 3998797), (11, 2544689), (19, 1473241), (53, 528143), (77, 363527), (133, 210463), (209, 133931), (361, 77539), (371, 75449), (583, 48013), (1007, 27797), (1463, 19133), (2527, 11077), (3971, 7049), (4081, 6859)]