12720442007

素因数分解:

$7^1\times {\mathrm{13}}^1\times {\mathrm{1973}}^1\times {\mathrm{70849}}^1$

素因数の和:72842

約数の個数: 16

約数和(自身を含む): 15664084800

約数和(自身を除く): 2943642793

約数列:

[1, 7, 13, 91, 1973, 13811, 25649, 70849, 179543, 495943, 921037, 6447259, 139785077, 978495539, 1817206001, 12720442007]

約数ペア:

[(1, 12720442007), (7, 1817206001), (13, 978495539), (91, 139785077), (1973, 6447259), (13811, 921037), (25649, 495943), (70849, 179543)]