20185751547

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{313}}^1\times {\mathrm{551207}}^1$

素因数の和:551539

約数の個数: 24

約数和(自身を含む): 31500434784

約数和(自身を除く): 11314683237

約数列:

[1, 3, 9, 13, 39, 117, 313, 939, 2817, 4069, 12207, 36621, 551207, 1653621, 4960863, 7165691, 21497073, 64491219, 172527791, 517583373, 1552750119, 2242861283, 6728583849, 20185751547]

約数ペア:

[(1, 20185751547), (3, 6728583849), (9, 2242861283), (13, 1552750119), (39, 517583373), (117, 172527791), (313, 64491219), (939, 21497073), (2817, 7165691), (4069, 4960863), (12207, 1653621), (36621, 551207)]