21540681

素因数分解:

$3^3\times {\mathrm{179}}^1\times {\mathrm{4457}}^1$

素因数の和:4645

約数の個数: 16

約数和(自身を含む): 32097600

約数和(自身を除く): 10556919

約数列:

[1, 3, 9, 27, 179, 537, 1611, 4457, 4833, 13371, 40113, 120339, 797803, 2393409, 7180227, 21540681]

約数ペア:

[(1, 21540681), (3, 7180227), (9, 2393409), (27, 797803), (179, 120339), (537, 40113), (1611, 13371), (4457, 4833)]