20654855

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{6761}}^1$

素因数の和:6826

約数の個数: 16

約数和(自身を含む): 27264384

約数和(自身を除く): 6609529

約数列:

[1, 5, 13, 47, 65, 235, 611, 3055, 6761, 33805, 87893, 317767, 439465, 1588835, 4130971, 20654855]

約数ペア:

[(1, 20654855), (5, 4130971), (13, 1588835), (47, 439465), (65, 317767), (235, 87893), (611, 33805), (3055, 6761)]