21126489

素因数分解:

$3^1\times {\mathrm{23}}^1\times {\mathrm{53}}^2\times {\mathrm{109}}^1$

素因数の和:241

約数の個数: 24

約数和(自身を含む): 30233280

約数和(自身を除く): 9106791

約数列:

[1, 3, 23, 53, 69, 109, 159, 327, 1219, 2507, 2809, 3657, 5777, 7521, 8427, 17331, 64607, 132871, 193821, 306181, 398613, 918543, 7042163, 21126489]

約数ペア:

[(1, 21126489), (3, 7042163), (23, 918543), (53, 398613), (69, 306181), (109, 193821), (159, 132871), (327, 64607), (1219, 17331), (2507, 8427), (2809, 7521), (3657, 5777)]