2988657

素因数分解:

$3^5\times 7^2\times {\mathrm{251}}^1$

素因数の和:280

約数の個数: 36

約数和(自身を含む): 5228496

約数和(自身を除く): 2239839

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 81, 147, 189, 243, 251, 441, 567, 753, 1323, 1701, 1757, 2259, 3969, 5271, 6777, 11907, 12299, 15813, 20331, 36897, 47439, 60993, 110691, 142317, 332073, 426951, 996219, 2988657]

約数ペア:

[(1, 2988657), (3, 996219), (7, 426951), (9, 332073), (21, 142317), (27, 110691), (49, 60993), (63, 47439), (81, 36897), (147, 20331), (189, 15813), (243, 12299), (251, 11907), (441, 6777), (567, 5271), (753, 3969), (1323, 2259), (1701, 1757)]