19916545

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{37}}^1\times {\mathrm{9787}}^1$

素因数の和:9840

約数の個数: 16

約数和(自身を含む): 26779968

約数和(自身を除く): 6863423

約数列:

[1, 5, 11, 37, 55, 185, 407, 2035, 9787, 48935, 107657, 362119, 538285, 1810595, 3983309, 19916545]

約数ペア:

[(1, 19916545), (5, 3983309), (11, 1810595), (37, 538285), (55, 362119), (185, 107657), (407, 48935), (2035, 9787)]