21709456

素因数分解:

$2^4\times {\mathrm{1051}}^1\times {\mathrm{1291}}^1$

素因数の和:2350

約数の個数: 20

約数和(自身を含む): 42134704

約数和(自身を除く): 20425248

約数列:

[1, 2, 4, 8, 16, 1051, 1291, 2102, 2582, 4204, 5164, 8408, 10328, 16816, 20656, 1356841, 2713682, 5427364, 10854728, 21709456]

約数ペア:

[(1, 21709456), (2, 10854728), (4, 5427364), (8, 2713682), (16, 1356841), (1051, 20656), (1291, 16816), (2102, 10328), (2582, 8408), (4204, 5164)]