21243400

素因数分解:

$2^3\times 5^2\times {\mathrm{106217}}^1$

素因数の和:106233

約数の個数: 24

約数和(自身を含む): 49391370

約数和(自身を除く): 28147970

約数列:

[1, 2, 4, 5, 8, 10, 20, 25, 40, 50, 100, 200, 106217, 212434, 424868, 531085, 849736, 1062170, 2124340, 2655425, 4248680, 5310850, 10621700, 21243400]

約数ペア:

[(1, 21243400), (2, 10621700), (4, 5310850), (5, 4248680), (8, 2655425), (10, 2124340), (20, 1062170), (25, 849736), (40, 531085), (50, 424868), (100, 212434), (200, 106217)]