28239407

素因数分解:

$7^1\times {\mathrm{53}}^1\times {\mathrm{103}}^1\times {\mathrm{739}}^1$

素因数の和:902

約数の個数: 16

約数和(自身を含む): 33246720

約数和(自身を除く): 5007313

約数列:

[1, 7, 53, 103, 371, 721, 739, 5173, 5459, 38213, 39167, 76117, 274169, 532819, 4034201, 28239407]

約数ペア:

[(1, 28239407), (7, 4034201), (53, 532819), (103, 274169), (371, 76117), (721, 39167), (739, 38213), (5173, 5459)]