13249405

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{103}}^1\times {\mathrm{1979}}^1$

素因数の和:2100

約数の個数: 16

約数和(自身を含む): 17297280

約数和(自身を除く): 4047875

約数列:

[1, 5, 13, 65, 103, 515, 1339, 1979, 6695, 9895, 25727, 128635, 203837, 1019185, 2649881, 13249405]

約数ペア:

[(1, 13249405), (5, 2649881), (13, 1019185), (65, 203837), (103, 128635), (515, 25727), (1339, 9895), (1979, 6695)]