21075320

素因数分解:

$2^3\times 5^1\times 7^1\times {\mathrm{75269}}^1$

素因数の和:75287

約数の個数: 32

約数和(自身を含む): 54194400

約数和(自身を除く): 33119080

約数列:

[1, 2, 4, 5, 7, 8, 10, 14, 20, 28, 35, 40, 56, 70, 140, 280, 75269, 150538, 301076, 376345, 526883, 602152, 752690, 1053766, 1505380, 2107532, 2634415, 3010760, 4215064, 5268830, 10537660, 21075320]

約数ペア:

[(1, 21075320), (2, 10537660), (4, 5268830), (5, 4215064), (7, 3010760), (8, 2634415), (10, 2107532), (14, 1505380), (20, 1053766), (28, 752690), (35, 602152), (40, 526883), (56, 376345), (70, 301076), (140, 150538), (280, 75269)]