389980948

素因数分解:

$2^2\times 7^1\times {\mathrm{2221}}^1\times {\mathrm{6271}}^1$

素因数の和:8503

約数の個数: 24

約数和(自身を含む): 780437504

約数和(自身を除く): 390456556

約数列:

[1, 2, 4, 7, 14, 28, 2221, 4442, 6271, 8884, 12542, 15547, 25084, 31094, 43897, 62188, 87794, 175588, 13927891, 27855782, 55711564, 97495237, 194990474, 389980948]

約数ペア:

[(1, 389980948), (2, 194990474), (4, 97495237), (7, 55711564), (14, 27855782), (28, 13927891), (2221, 175588), (4442, 87794), (6271, 62188), (8884, 43897), (12542, 31094), (15547, 25084)]