21895310

素因数分解:

$2^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{4139}}^1$

素因数の和:4192

約数の個数: 24

約数和(自身を含む): 41209560

約数和(自身を除く): 19314250

約数列:

[1, 2, 5, 10, 23, 46, 115, 230, 529, 1058, 2645, 4139, 5290, 8278, 20695, 41390, 95197, 190394, 475985, 951970, 2189531, 4379062, 10947655, 21895310]

約数ペア:

[(1, 21895310), (2, 10947655), (5, 4379062), (10, 2189531), (23, 951970), (46, 475985), (115, 190394), (230, 95197), (529, 41390), (1058, 20695), (2645, 8278), (4139, 5290)]