20979130

素因数分解:

$2^1\times 5^1\times {\mathrm{127}}^1\times {\mathrm{16519}}^1$

素因数の和:16653

約数の個数: 16

約数和(自身を含む): 38062080

約数和(自身を除く): 17082950

約数列:

[1, 2, 5, 10, 127, 254, 635, 1270, 16519, 33038, 82595, 165190, 2097913, 4195826, 10489565, 20979130]

約数ペア:

[(1, 20979130), (2, 10489565), (5, 4195826), (10, 2097913), (127, 165190), (254, 82595), (635, 33038), (1270, 16519)]