21271103

素因数分解:

$7^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{337}}^1$

素因数の和:542

約数の個数: 16

約数和(自身を含む): 24920064

約数和(自身を除く): 3648961

約数列:

[1, 7, 71, 127, 337, 497, 889, 2359, 9017, 23927, 42799, 63119, 167489, 299593, 3038729, 21271103]

約数ペア:

[(1, 21271103), (7, 3038729), (71, 299593), (127, 167489), (337, 63119), (497, 42799), (889, 23927), (2359, 9017)]