21542859

素因数分解:

$3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{10831}}^1$

素因数の和:10867

約数の個数: 24

約数和(自身を含む): 35485632

約数和(自身を除く): 13942773

約数列:

[1, 3, 9, 13, 17, 39, 51, 117, 153, 221, 663, 1989, 10831, 32493, 97479, 140803, 184127, 422409, 552381, 1267227, 1657143, 2393651, 7180953, 21542859]

約数ペア:

[(1, 21542859), (3, 7180953), (9, 2393651), (13, 1657143), (17, 1267227), (39, 552381), (51, 422409), (117, 184127), (153, 140803), (221, 97479), (663, 32493), (1989, 10831)]