20754349

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{11719}}^1$

素因数の和:11760

約数の個数: 16

約数和(自身を含む): 27002880

約数和(自身を除く): 6248531

約数列:

[1, 7, 11, 23, 77, 161, 253, 1771, 11719, 82033, 128909, 269537, 902363, 1886759, 2964907, 20754349]

約数ペア:

[(1, 20754349), (7, 2964907), (11, 1886759), (23, 902363), (77, 269537), (161, 128909), (253, 82033), (1771, 11719)]