51520521

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{19717}}^1$

素因数の和:19800

約数の個数: 16

約数和(自身を含む): 75086144

約数和(自身を除く): 23565623

約数列:

[1, 3, 13, 39, 67, 201, 871, 2613, 19717, 59151, 256321, 768963, 1321039, 3963117, 17173507, 51520521]

約数ペア:

[(1, 51520521), (3, 17173507), (13, 3963117), (39, 1321039), (67, 768963), (201, 256321), (871, 59151), (2613, 19717)]