21273740

素因数分解:

$2^2\times 5^1\times {\mathrm{107}}^1\times {\mathrm{9941}}^1$

素因数の和:10057

約数の個数: 24

約数和(自身を含む): 45096912

約数和(自身を除く): 23823172

約数列:

[1, 2, 4, 5, 10, 20, 107, 214, 428, 535, 1070, 2140, 9941, 19882, 39764, 49705, 99410, 198820, 1063687, 2127374, 4254748, 5318435, 10636870, 21273740]

約数ペア:

[(1, 21273740), (2, 10636870), (4, 5318435), (5, 4254748), (10, 2127374), (20, 1063687), (107, 198820), (214, 99410), (428, 49705), (535, 39764), (1070, 19882), (2140, 9941)]