54321239

素因数分解:

$7^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{223}}^1$

素因数の和:359

約数の個数: 32

約数和(自身を含む): 69672960

約数和(自身を除く): 15351721

約数列:

[1, 7, 17, 23, 89, 119, 161, 223, 391, 623, 1513, 1561, 2047, 2737, 3791, 5129, 10591, 14329, 19847, 26537, 34799, 35903, 87193, 138929, 243593, 337399, 456481, 610351, 2361793, 3195367, 7760177, 54321239]

約数ペア:

[(1, 54321239), (7, 7760177), (17, 3195367), (23, 2361793), (89, 610351), (119, 456481), (161, 337399), (223, 243593), (391, 138929), (623, 87193), (1513, 35903), (1561, 34799), (2047, 26537), (2737, 19847), (3791, 14329), (5129, 10591)]