20909277

素因数分解:

$3^2\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{1217}}^1$

素因数の和:1329

約数の個数: 24

約数和(自身を含む): 31921344

約数和(自身を除く): 11012067

約数列:

[1, 3, 9, 23, 69, 83, 207, 249, 747, 1217, 1909, 3651, 5727, 10953, 17181, 27991, 83973, 101011, 251919, 303033, 909099, 2323253, 6969759, 20909277]

約数ペア:

[(1, 20909277), (3, 6969759), (9, 2323253), (23, 909099), (69, 303033), (83, 251919), (207, 101011), (249, 83973), (747, 27991), (1217, 17181), (1909, 10953), (3651, 5727)]