18963791

素因数分解:

$7^1\times {\mathrm{11}}^1\times {\mathrm{97}}^1\times {\mathrm{2539}}^1$

素因数の和:2654

約数の個数: 16

約数和(自身を含む): 23896320

約数和(自身を除く): 4932529

約数列:

[1, 7, 11, 77, 97, 679, 1067, 2539, 7469, 17773, 27929, 195503, 246283, 1723981, 2709113, 18963791]

約数ペア:

[(1, 18963791), (7, 2709113), (11, 1723981), (77, 246283), (97, 195503), (679, 27929), (1067, 17773), (2539, 7469)]