12131289

素因数分解:

$3^8\times {\mathrm{43}}^2$

素因数の和:110

約数の個数: 27

約数和(自身を含む): 18629013

約数和(自身を除く): 6497724

約数列:

[1, 3, 9, 27, 43, 81, 129, 243, 387, 729, 1161, 1849, 2187, 3483, 5547, 6561, 10449, 16641, 31347, 49923, 94041, 149769, 282123, 449307, 1347921, 4043763, 12131289]

約数ペア:

[(1, 12131289), (3, 4043763), (9, 1347921), (27, 449307), (43, 282123), (81, 149769), (129, 94041), (243, 49923), (387, 31347), (729, 16641), (1161, 10449), (1849, 6561), (2187, 5547)]