254999511

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{107}}^1\times {\mathrm{20369}}^1$

素因数の和:20495

約数の個数: 24

約数和(自身を含む): 400392720

約数和(自身を除く): 145393209

約数列:

[1, 3, 9, 13, 39, 107, 117, 321, 963, 1391, 4173, 12519, 20369, 61107, 183321, 264797, 794391, 2179483, 2383173, 6538449, 19615347, 28333279, 84999837, 254999511]

約数ペア:

[(1, 254999511), (3, 84999837), (9, 28333279), (13, 19615347), (39, 6538449), (107, 2383173), (117, 2179483), (321, 794391), (963, 264797), (1391, 183321), (4173, 61107), (12519, 20369)]