205381491

素因数分解:

$3^1\times 7^2\times {\mathrm{1397153}}^1$

素因数の和:1397170

約数の個数: 12

約数和(自身を含む): 318551112

約数和(自身を除く): 113169621

約数列:

[1, 3, 7, 21, 49, 147, 1397153, 4191459, 9780071, 29340213, 68460497, 205381491]

約数ペア:

[(1, 205381491), (3, 68460497), (7, 29340213), (21, 9780071), (49, 4191459), (147, 1397153)]