388972689

素因数分解:

$3^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{253733}}^1$

素因数の和:253816

約数の個数: 16

約数和(自身を含む): 600842112

約数和(自身を除く): 211869423

約数列:

[1, 3, 7, 21, 73, 219, 511, 1533, 253733, 761199, 1776131, 5328393, 18522509, 55567527, 129657563, 388972689]

約数ペア:

[(1, 388972689), (3, 129657563), (7, 55567527), (21, 18522509), (73, 5328393), (219, 1776131), (511, 761199), (1533, 253733)]