18920121

素因数分解:

$3^1\times {\mathrm{11}}^1\times {\mathrm{179}}^1\times {\mathrm{3203}}^1$

素因数の和:3396

約数の個数: 16

約数和(自身を含む): 27682560

約数和(自身を除く): 8762439

約数列:

[1, 3, 11, 33, 179, 537, 1969, 3203, 5907, 9609, 35233, 105699, 573337, 1720011, 6306707, 18920121]

約数ペア:

[(1, 18920121), (3, 6306707), (11, 1720011), (33, 573337), (179, 105699), (537, 35233), (1969, 9609), (3203, 5907)]