28376001

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{8147}}^1$

素因数の和:8202

約数の個数: 20

約数和(自身を含む): 43379952

約数和(自身を除く): 15003951

約数列:

[1, 3, 9, 27, 43, 81, 129, 387, 1161, 3483, 8147, 24441, 73323, 219969, 350321, 659907, 1050963, 3152889, 9458667, 28376001]

約数ペア:

[(1, 28376001), (3, 9458667), (9, 3152889), (27, 1050963), (43, 659907), (81, 350321), (129, 219969), (387, 73323), (1161, 24441), (3483, 8147)]