20211400

素因数分解:

$2^3\times 5^2\times {\mathrm{11}}^1\times {\mathrm{9187}}^1$

素因数の和:9214

約数の個数: 48

約数和(自身を含む): 51269040

約数和(自身を除く): 31057640

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 25, 40, 44, 50, 55, 88, 100, 110, 200, 220, 275, 440, 550, 1100, 2200, 9187, 18374, 36748, 45935, 73496, 91870, 101057, 183740, 202114, 229675, 367480, 404228, 459350, 505285, 808456, 918700, 1010570, 1837400, 2021140, 2526425, 4042280, 5052850, 10105700, 20211400]

約数ペア:

[(1, 20211400), (2, 10105700), (4, 5052850), (5, 4042280), (8, 2526425), (10, 2021140), (11, 1837400), (20, 1010570), (22, 918700), (25, 808456), (40, 505285), (44, 459350), (50, 404228), (55, 367480), (88, 229675), (100, 202114), (110, 183740), (200, 101057), (220, 91870), (275, 73496), (440, 45935), (550, 36748), (1100, 18374), (2200, 9187)]