21457300

素因数分解:

$2^2\times 5^2\times {\mathrm{229}}^1\times {\mathrm{937}}^1$

素因数の和:1180

約数の個数: 36

約数和(自身を含む): 46815580

約数和(自身を除く): 25358280

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 229, 458, 916, 937, 1145, 1874, 2290, 3748, 4580, 4685, 5725, 9370, 11450, 18740, 22900, 23425, 46850, 93700, 214573, 429146, 858292, 1072865, 2145730, 4291460, 5364325, 10728650, 21457300]

約数ペア:

[(1, 21457300), (2, 10728650), (4, 5364325), (5, 4291460), (10, 2145730), (20, 1072865), (25, 858292), (50, 429146), (100, 214573), (229, 93700), (458, 46850), (916, 23425), (937, 22900), (1145, 18740), (1874, 11450), (2290, 9370), (3748, 5725), (4580, 4685)]