28132559

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{53}}^1\times {\mathrm{307}}^1$

素因数の和:399

約数の個数: 32

約数和(自身を含む): 37255680

約数和(自身を除く): 9123121

約数列:

[1, 7, 13, 19, 53, 91, 133, 247, 307, 371, 689, 1007, 1729, 2149, 3991, 4823, 5833, 7049, 13091, 16271, 27937, 40831, 75829, 91637, 113897, 211523, 309149, 530803, 1480661, 2164043, 4018937, 28132559]

約数ペア:

[(1, 28132559), (7, 4018937), (13, 2164043), (19, 1480661), (53, 530803), (91, 309149), (133, 211523), (247, 113897), (307, 91637), (371, 75829), (689, 40831), (1007, 27937), (1729, 16271), (2149, 13091), (3991, 7049), (4823, 5833)]