21054260

素因数分解:

$2^2\times 5^1\times {\mathrm{229}}^1\times {\mathrm{4597}}^1$

素因数の和:4835

約数の個数: 24

約数和(自身を含む): 44416680

約数和(自身を除く): 23362420

約数列:

[1, 2, 4, 5, 10, 20, 229, 458, 916, 1145, 2290, 4580, 4597, 9194, 18388, 22985, 45970, 91940, 1052713, 2105426, 4210852, 5263565, 10527130, 21054260]

約数ペア:

[(1, 21054260), (2, 10527130), (4, 5263565), (5, 4210852), (10, 2105426), (20, 1052713), (229, 91940), (458, 45970), (916, 22985), (1145, 18388), (2290, 9194), (4580, 4597)]