20123018181

素因数分解:

$3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{47}}^1\times {\mathrm{158047}}^1$

素因数の和:158150

約数の個数: 48

約数和(自身を含む): 34714927104

約数和(自身を除く): 14591908923

約数列:

[1, 3, 7, 9, 21, 43, 47, 63, 129, 141, 301, 329, 387, 423, 903, 987, 2021, 2709, 2961, 6063, 14147, 18189, 42441, 127323, 158047, 474141, 1106329, 1422423, 3318987, 6796021, 7428209, 9956961, 20388063, 22284627, 47572147, 51997463, 61164189, 66853881, 142716441, 155992389, 319412987, 428149323, 467977167, 958238961, 2235890909, 2874716883, 6707672727, 20123018181]

約数ペア:

[(1, 20123018181), (3, 6707672727), (7, 2874716883), (9, 2235890909), (21, 958238961), (43, 467977167), (47, 428149323), (63, 319412987), (129, 155992389), (141, 142716441), (301, 66853881), (329, 61164189), (387, 51997463), (423, 47572147), (903, 22284627), (987, 20388063), (2021, 9956961), (2709, 7428209), (2961, 6796021), (6063, 3318987), (14147, 1422423), (18189, 1106329), (42441, 474141), (127323, 158047)]