18338905

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{4211}}^1$

素因数の和:4296

約数の個数: 16

約数和(自身を含む): 24058944

約数和(自身を除く): 5720039

約数列:

[1, 5, 13, 65, 67, 335, 871, 4211, 4355, 21055, 54743, 273715, 282137, 1410685, 3667781, 18338905]

約数ペア:

[(1, 18338905), (5, 3667781), (13, 1410685), (65, 282137), (67, 273715), (335, 54743), (871, 21055), (4211, 4355)]