1388394406

素因数分解:

$2^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{2306303}}^1$

素因数の和:2306355

約数の個数: 16

約数和(自身を含む): 2435457024

約数和(自身を除く): 1047062618

約数列:

[1, 2, 7, 14, 43, 86, 301, 602, 2306303, 4612606, 16144121, 32288242, 99171029, 198342058, 694197203, 1388394406]

約数ペア:

[(1, 1388394406), (2, 694197203), (7, 198342058), (14, 99171029), (43, 32288242), (86, 16144121), (301, 4612606), (602, 2306303)]