18923919

素因数分解:

$3^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{709}}^1$

素因数の和:791

約数の個数: 32

約数和(自身を含む): 30535680

約数和(自身を除く): 11611761

約数列:

[1, 3, 7, 21, 31, 41, 93, 123, 217, 287, 651, 709, 861, 1271, 2127, 3813, 4963, 8897, 14889, 21979, 26691, 29069, 65937, 87207, 153853, 203483, 461559, 610449, 901139, 2703417, 6307973, 18923919]

約数ペア:

[(1, 18923919), (3, 6307973), (7, 2703417), (21, 901139), (31, 610449), (41, 461559), (93, 203483), (123, 153853), (217, 87207), (287, 65937), (651, 29069), (709, 26691), (861, 21979), (1271, 14889), (2127, 8897), (3813, 4963)]