28149583

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{271}}^1$

素因数の和:379

約数の個数: 32

約数和(自身を含む): 37601280

約数和(自身を除く): 9451697

約数列:

[1, 7, 11, 19, 71, 77, 133, 209, 271, 497, 781, 1349, 1463, 1897, 2981, 5149, 5467, 9443, 14839, 19241, 20867, 36043, 56639, 103873, 134687, 211651, 365579, 396473, 1481557, 2559053, 4021369, 28149583]

約数ペア:

[(1, 28149583), (7, 4021369), (11, 2559053), (19, 1481557), (71, 396473), (77, 365579), (133, 211651), (209, 134687), (271, 103873), (497, 56639), (781, 36043), (1349, 20867), (1463, 19241), (1897, 14839), (2981, 9443), (5149, 5467)]