21000332169

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{313}}^1\times {\mathrm{438521}}^1$

素因数の和:438857

約数の個数: 24

約数和(自身を含む): 32220842472

約数和(自身を除く): 11220510303

約数列:

[1, 3, 9, 17, 51, 153, 313, 939, 2817, 5321, 15963, 47889, 438521, 1315563, 3946689, 7454857, 22364571, 67093713, 137257073, 411771219, 1235313657, 2333370241, 7000110723, 21000332169]

約数ペア:

[(1, 21000332169), (3, 7000110723), (9, 2333370241), (17, 1235313657), (51, 411771219), (153, 137257073), (313, 67093713), (939, 22364571), (2817, 7454857), (5321, 3946689), (15963, 1315563), (47889, 438521)]