21031340

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{95597}}^1$

素因数の和:95617

約数の個数: 24

約数和(自身を含む): 48181392

約数和(自身を除く): 27150052

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 220, 95597, 191194, 382388, 477985, 955970, 1051567, 1911940, 2103134, 4206268, 5257835, 10515670, 21031340]

約数ペア:

[(1, 21031340), (2, 10515670), (4, 5257835), (5, 4206268), (10, 2103134), (11, 1911940), (20, 1051567), (22, 955970), (44, 477985), (55, 382388), (110, 191194), (220, 95597)]