18137564949

素因数分解:

$3^1\times 7^1\times {\mathrm{1301}}^1\times {\mathrm{663869}}^1$

素因数の和:665180

約数の個数: 16

約数和(自身を含む): 27659479680

約数和(自身を除く): 9521914731

約数列:

[1, 3, 7, 21, 1301, 3903, 9107, 27321, 663869, 1991607, 4647083, 13941249, 863693569, 2591080707, 6045854983, 18137564949]

約数ペア:

[(1, 18137564949), (3, 6045854983), (7, 2591080707), (21, 863693569), (1301, 13941249), (3903, 4647083), (9107, 1991607), (27321, 663869)]