640833567

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{41}}^1\times {\mathrm{20593}}^1$

素因数の和:20671

約数の個数: 32

約数和(自身を含む): 996420096

約数和(自身を除く): 355586529

約数列:

[1, 3, 11, 23, 33, 41, 69, 123, 253, 451, 759, 943, 1353, 2829, 10373, 20593, 31119, 61779, 226523, 473639, 679569, 844313, 1420917, 2532939, 5210029, 9287443, 15630087, 19419199, 27862329, 58257597, 213611189, 640833567]

約数ペア:

[(1, 640833567), (3, 213611189), (11, 58257597), (23, 27862329), (33, 19419199), (41, 15630087), (69, 9287443), (123, 5210029), (253, 2532939), (451, 1420917), (759, 844313), (943, 679569), (1353, 473639), (2829, 226523), (10373, 61779), (20593, 31119)]