28378609

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{6883}}^1$

素因数の和:6940

約数の個数: 16

約数和(自身を含む): 35246080

約数和(自身を除く): 6867471

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 6883, 48181, 130777, 213373, 915439, 1493611, 4054087, 28378609]

約数ペア:

[(1, 28378609), (7, 4054087), (19, 1493611), (31, 915439), (133, 213373), (217, 130777), (589, 48181), (4123, 6883)]