21947378

素因数分解:

$2^1\times {\mathrm{71}}^1\times {\mathrm{127}}^1\times {\mathrm{1217}}^1$

素因数の和:1417

約数の個数: 16

約数和(自身を含む): 33675264

約数和(自身を除く): 11727886

約数列:

[1, 2, 71, 127, 142, 254, 1217, 2434, 9017, 18034, 86407, 154559, 172814, 309118, 10973689, 21947378]

約数ペア:

[(1, 21947378), (2, 10973689), (71, 309118), (127, 172814), (142, 154559), (254, 86407), (1217, 18034), (2434, 9017)]