18939858

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{450949}}^1$

素因数の和:450961

約数の個数: 16

約数和(自身を含む): 43291200

約数和(自身を除く): 24351342

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 450949, 901898, 1352847, 2705694, 3156643, 6313286, 9469929, 18939858]

約数ペア:

[(1, 18939858), (2, 9469929), (3, 6313286), (6, 3156643), (7, 2705694), (14, 1352847), (21, 901898), (42, 450949)]