28007903

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{53}}^1\times {\mathrm{6863}}^1$

素因数の和:6934

約数の個数: 16

約数和(自身を含む): 35582976

約数和(自身を除く): 7575073

約数列:

[1, 7, 11, 53, 77, 371, 583, 4081, 6863, 48041, 75493, 363739, 528451, 2546173, 4001129, 28007903]

約数ペア:

[(1, 28007903), (7, 4001129), (11, 2546173), (53, 528451), (77, 363739), (371, 75493), (583, 48041), (4081, 6863)]