21422540

素因数分解:

$2^2\times 5^1\times {\mathrm{113}}^1\times {\mathrm{9479}}^1$

素因数の和:9601

約数の個数: 24

約数和(自身を含む): 45390240

約数和(自身を除く): 23967700

約数列:

[1, 2, 4, 5, 10, 20, 113, 226, 452, 565, 1130, 2260, 9479, 18958, 37916, 47395, 94790, 189580, 1071127, 2142254, 4284508, 5355635, 10711270, 21422540]

約数ペア:

[(1, 21422540), (2, 10711270), (4, 5355635), (5, 4284508), (10, 2142254), (20, 1071127), (113, 189580), (226, 94790), (452, 47395), (565, 37916), (1130, 18958), (2260, 9479)]