21491646

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{325631}}^1$

素因数の和:325647

約数の個数: 16

約数和(自身を含む): 46891008

約数和(自身を除く): 25399362

約数列:

[1, 2, 3, 6, 11, 22, 33, 66, 325631, 651262, 976893, 1953786, 3581941, 7163882, 10745823, 21491646]

約数ペア:

[(1, 21491646), (2, 10745823), (3, 7163882), (6, 3581941), (11, 1953786), (22, 976893), (33, 651262), (66, 325631)]