21668660

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{83341}}^1$

素因数の和:83363

約数の個数: 24

約数和(自身を含む): 49005096

約数和(自身を除く): 27336436

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 130, 260, 83341, 166682, 333364, 416705, 833410, 1083433, 1666820, 2166866, 4333732, 5417165, 10834330, 21668660]

約数ペア:

[(1, 21668660), (2, 10834330), (4, 5417165), (5, 4333732), (10, 2166866), (13, 1666820), (20, 1083433), (26, 833410), (52, 416705), (65, 333364), (130, 166682), (260, 83341)]