20656555

素因数分解:

$5^1\times {\mathrm{29}}^1\times {\mathrm{43}}^1\times {\mathrm{3313}}^1$

素因数の和:3390

約数の個数: 16

約数和(自身を含む): 26246880

約数和(自身を除く): 5590325

約数列:

[1, 5, 29, 43, 145, 215, 1247, 3313, 6235, 16565, 96077, 142459, 480385, 712295, 4131311, 20656555]

約数ペア:

[(1, 20656555), (5, 4131311), (29, 712295), (43, 480385), (145, 142459), (215, 96077), (1247, 16565), (3313, 6235)]