18227783

素因数分解:

$7^1\times {\mathrm{19}}^1\times {\mathrm{31}}^1\times {\mathrm{4421}}^1$

素因数の和:4478

約数の個数: 16

約数和(自身を含む): 22640640

約数和(自身を除く): 4412857

約数列:

[1, 7, 19, 31, 133, 217, 589, 4123, 4421, 30947, 83999, 137051, 587993, 959357, 2603969, 18227783]

約数ペア:

[(1, 18227783), (7, 2603969), (19, 959357), (31, 587993), (133, 137051), (217, 83999), (589, 30947), (4123, 4421)]