19488755

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{281}}^1$

素因数の和:407

約数の個数: 32

約数和(自身を含む): 27857088

約数和(自身を除く): 8368333

約数列:

[1, 5, 11, 13, 55, 65, 97, 143, 281, 485, 715, 1067, 1261, 1405, 3091, 3653, 5335, 6305, 13871, 15455, 18265, 27257, 40183, 69355, 136285, 200915, 299827, 354341, 1499135, 1771705, 3897751, 19488755]

約数ペア:

[(1, 19488755), (5, 3897751), (11, 1771705), (13, 1499135), (55, 354341), (65, 299827), (97, 200915), (143, 136285), (281, 69355), (485, 40183), (715, 27257), (1067, 18265), (1261, 15455), (1405, 13871), (3091, 6305), (3653, 5335)]