19749235

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{137}}^1\times {\mathrm{2621}}^1$

素因数の和:2774

約数の個数: 16

約数和(自身を含む): 26052192

約数和(自身を除く): 6302957

約数列:

[1, 5, 11, 55, 137, 685, 1507, 2621, 7535, 13105, 28831, 144155, 359077, 1795385, 3949847, 19749235]

約数ペア:

[(1, 19749235), (5, 3949847), (11, 1795385), (55, 359077), (137, 144155), (685, 28831), (1507, 13105), (2621, 7535)]