21473427

素因数分解:

$3^1\times {\mathrm{29}}^1\times {\mathrm{53}}^1\times {\mathrm{4657}}^1$

素因数の和:4742

約数の個数: 16

約数和(自身を含む): 30183840

約数和(自身を除く): 8710413

約数列:

[1, 3, 29, 53, 87, 159, 1537, 4611, 4657, 13971, 135053, 246821, 405159, 740463, 7157809, 21473427]

約数ペア:

[(1, 21473427), (3, 7157809), (29, 740463), (53, 405159), (87, 246821), (159, 135053), (1537, 13971), (4611, 4657)]