21019053

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{8971}}^1$

素因数の和:9056

約数の個数: 16

約数和(自身を含む): 31007232

約数和(自身を除く): 9988179

約数列:

[1, 3, 11, 33, 71, 213, 781, 2343, 8971, 26913, 98681, 296043, 636941, 1910823, 7006351, 21019053]

約数ペア:

[(1, 21019053), (3, 7006351), (11, 1910823), (33, 636941), (71, 296043), (213, 98681), (781, 26913), (2343, 8971)]