20998194

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{499957}}^1$

素因数の和:499969

約数の個数: 16

約数和(自身を含む): 47995968

約数和(自身を除く): 26997774

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 499957, 999914, 1499871, 2999742, 3499699, 6999398, 10499097, 20998194]

約数ペア:

[(1, 20998194), (2, 10499097), (3, 6999398), (6, 3499699), (7, 2999742), (14, 1499871), (21, 999914), (42, 499957)]