18771831

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{17827}}^1$

素因数の和:17852

約数の個数: 20

約数和(自身を含む): 30200632

約数和(自身を除く): 11428801

約数列:

[1, 3, 9, 13, 27, 39, 81, 117, 351, 1053, 17827, 53481, 160443, 231751, 481329, 695253, 1443987, 2085759, 6257277, 18771831]

約数ペア:

[(1, 18771831), (3, 6257277), (9, 2085759), (13, 1443987), (27, 695253), (39, 481329), (81, 231751), (117, 160443), (351, 53481), (1053, 17827)]