12720513

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{5347}}^1$

素因数の和:5424

約数の個数: 16

約数和(自身を含む): 18568256

約数和(自身を除く): 5847743

約数列:

[1, 3, 13, 39, 61, 183, 793, 2379, 5347, 16041, 69511, 208533, 326167, 978501, 4240171, 12720513]

約数ペア:

[(1, 12720513), (3, 4240171), (13, 978501), (39, 326167), (61, 208533), (183, 69511), (793, 16041), (2379, 5347)]