21543700

素因数分解:

$2^2\times 5^2\times {\mathrm{97}}^1\times {\mathrm{2221}}^1$

素因数の和:2332

約数の個数: 36

約数和(自身を含む): 47253052

約数和(自身を除く): 25709352

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 97, 100, 194, 388, 485, 970, 1940, 2221, 2425, 4442, 4850, 8884, 9700, 11105, 22210, 44420, 55525, 111050, 215437, 222100, 430874, 861748, 1077185, 2154370, 4308740, 5385925, 10771850, 21543700]

約数ペア:

[(1, 21543700), (2, 10771850), (4, 5385925), (5, 4308740), (10, 2154370), (20, 1077185), (25, 861748), (50, 430874), (97, 222100), (100, 215437), (194, 111050), (388, 55525), (485, 44420), (970, 22210), (1940, 11105), (2221, 9700), (2425, 8884), (4442, 4850)]