21070701

素因数分解:

$3^2\times {\mathrm{17}}^2\times {\mathrm{8101}}^1$

素因数の和:8141

約数の個数: 18

約数和(自身を含む): 32335082

約数和(自身を除く): 11264381

約数列:

[1, 3, 9, 17, 51, 153, 289, 867, 2601, 8101, 24303, 72909, 137717, 413151, 1239453, 2341189, 7023567, 21070701]

約数ペア:

[(1, 21070701), (3, 7023567), (9, 2341189), (17, 1239453), (51, 413151), (153, 137717), (289, 72909), (867, 24303), (2601, 8101)]