25781459

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{181}}^1\times {\mathrm{563}}^1$

素因数の和:778

約数の個数: 16

約数和(自身を含む): 29562624

約数和(自身を除く): 3781165

約数列:

[1, 11, 23, 181, 253, 563, 1991, 4163, 6193, 12949, 45793, 101903, 142439, 1120933, 2343769, 25781459]

約数ペア:

[(1, 25781459), (11, 2343769), (23, 1120933), (181, 142439), (253, 101903), (563, 45793), (1991, 12949), (4163, 6193)]