19897085

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{16111}}^1$

素因数の和:16148

約数の個数: 16

約数和(自身を含む): 27068160

約数和(自身を除く): 7171075

約数列:

[1, 5, 13, 19, 65, 95, 247, 1235, 16111, 80555, 209443, 306109, 1047215, 1530545, 3979417, 19897085]

約数ペア:

[(1, 19897085), (5, 3979417), (13, 1530545), (19, 1047215), (65, 306109), (95, 209443), (247, 80555), (1235, 16111)]