21604060

素因数分解:

$2^2\times 5^1\times {\mathrm{43}}^1\times {\mathrm{25121}}^1$

素因数の和:25173

約数の個数: 24

約数和(自身を含む): 46425456

約数和(自身を除く): 24821396

約数列:

[1, 2, 4, 5, 10, 20, 43, 86, 172, 215, 430, 860, 25121, 50242, 100484, 125605, 251210, 502420, 1080203, 2160406, 4320812, 5401015, 10802030, 21604060]

約数ペア:

[(1, 21604060), (2, 10802030), (4, 5401015), (5, 4320812), (10, 2160406), (20, 1080203), (43, 502420), (86, 251210), (172, 125605), (215, 100484), (430, 50242), (860, 25121)]