21327135

素因数分解:

$3^1\times 5^1\times {\mathrm{521}}^1\times {\mathrm{2729}}^1$

素因数の和:3258

約数の個数: 16

約数和(自身を含む): 34201440

約数和(自身を除く): 12874305

約数列:

[1, 3, 5, 15, 521, 1563, 2605, 2729, 7815, 8187, 13645, 40935, 1421809, 4265427, 7109045, 21327135]

約数ペア:

[(1, 21327135), (3, 7109045), (5, 4265427), (15, 1421809), (521, 40935), (1563, 13645), (2605, 8187), (2729, 7815)]