18811925

素因数分解:

$5^2\times {\mathrm{11}}^1\times {\mathrm{67}}^1\times {\mathrm{1021}}^1$

素因数の和:1109

約数の個数: 24

約数和(自身を含む): 25852512

約数和(自身を除く): 7040587

約数列:

[1, 5, 11, 25, 55, 67, 275, 335, 737, 1021, 1675, 3685, 5105, 11231, 18425, 25525, 56155, 68407, 280775, 342035, 752477, 1710175, 3762385, 18811925]

約数ペア:

[(1, 18811925), (5, 3762385), (11, 1710175), (25, 752477), (55, 342035), (67, 280775), (275, 68407), (335, 56155), (737, 25525), (1021, 18425), (1675, 11231), (3685, 5105)]