21257050

素因数分解:

$2^1\times 5^2\times {\mathrm{43}}^1\times {\mathrm{9887}}^1$

素因数の和:9942

約数の個数: 24

約数和(自身を含む): 40461696

約数和(自身を除く): 19204646

約数列:

[1, 2, 5, 10, 25, 43, 50, 86, 215, 430, 1075, 2150, 9887, 19774, 49435, 98870, 247175, 425141, 494350, 850282, 2125705, 4251410, 10628525, 21257050]

約数ペア:

[(1, 21257050), (2, 10628525), (5, 4251410), (10, 2125705), (25, 850282), (43, 494350), (50, 425141), (86, 247175), (215, 98870), (430, 49435), (1075, 19774), (2150, 9887)]