20181651

素因数分解:

$3^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{1069}}^1$

素因数の和:1139

約数の個数: 32

約数和(自身を含む): 32870400

約数和(自身を除く): 12688749

約数列:

[1, 3, 7, 21, 29, 31, 87, 93, 203, 217, 609, 651, 899, 1069, 2697, 3207, 6293, 7483, 18879, 22449, 31001, 33139, 93003, 99417, 217007, 231973, 651021, 695919, 961031, 2883093, 6727217, 20181651]

約数ペア:

[(1, 20181651), (3, 6727217), (7, 2883093), (21, 961031), (29, 695919), (31, 651021), (87, 231973), (93, 217007), (203, 99417), (217, 93003), (609, 33139), (651, 31001), (899, 22449), (1069, 18879), (2697, 7483), (3207, 6293)]