18941455

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{311}}^1\times {\mathrm{937}}^1$

素因数の和:1266

約数の個数: 16

約数和(自身を含む): 24583104

約数和(自身を除く): 5641649

約数列:

[1, 5, 13, 65, 311, 937, 1555, 4043, 4685, 12181, 20215, 60905, 291407, 1457035, 3788291, 18941455]

約数ペア:

[(1, 18941455), (5, 3788291), (13, 1457035), (65, 291407), (311, 60905), (937, 20215), (1555, 12181), (4043, 4685)]