397491542

素因数分解:

$2^1\times 7^1\times {\mathrm{1321}}^1\times {\mathrm{21493}}^1$

素因数の和:22823

約数の個数: 16

約数和(自身を含む): 681961632

約数和(自身を除く): 284470090

約数列:

[1, 2, 7, 14, 1321, 2642, 9247, 18494, 21493, 42986, 150451, 300902, 28392253, 56784506, 198745771, 397491542]

約数ペア:

[(1, 397491542), (2, 198745771), (7, 56784506), (14, 28392253), (1321, 300902), (2642, 150451), (9247, 42986), (18494, 21493)]