19639555

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{73}}^1\times {\mathrm{4139}}^1$

素因数の和:4230

約数の個数: 16

約数和(自身を含む): 25734240

約数和(自身を除く): 6094685

約数列:

[1, 5, 13, 65, 73, 365, 949, 4139, 4745, 20695, 53807, 269035, 302147, 1510735, 3927911, 19639555]

約数ペア:

[(1, 19639555), (5, 3927911), (13, 1510735), (65, 302147), (73, 269035), (365, 53807), (949, 20695), (4139, 4745)]