21000966507

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{127}}^1\times {\mathrm{1080797}}^1$

素因数の和:1080947

約数の個数: 24

約数和(自身を含む): 32372061696

約数和(自身を除く): 11371095189

約数列:

[1, 3, 9, 17, 51, 127, 153, 381, 1143, 2159, 6477, 19431, 1080797, 3242391, 9727173, 18373549, 55120647, 137261219, 165361941, 411783657, 1235350971, 2333440723, 7000322169, 21000966507]

約数ペア:

[(1, 21000966507), (3, 7000322169), (9, 2333440723), (17, 1235350971), (51, 411783657), (127, 165361941), (153, 137261219), (381, 55120647), (1143, 18373549), (2159, 9727173), (6477, 3242391), (19431, 1080797)]