21211382

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{9811}}^1$

素因数の和:9883

約数の個数: 16

約数和(自身を含む): 33910272

約数和(自身を除く): 12698890

約数列:

[1, 2, 23, 46, 47, 94, 1081, 2162, 9811, 19622, 225653, 451306, 461117, 922234, 10605691, 21211382]

約数ペア:

[(1, 21211382), (2, 10605691), (23, 922234), (46, 461117), (47, 451306), (94, 225653), (1081, 19622), (2162, 9811)]