2491209

素因数分解:

$3^3\times 7^3\times {\mathrm{269}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 4320000

約数和(自身を除く): 1828791

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 147, 189, 269, 343, 441, 807, 1029, 1323, 1883, 2421, 3087, 5649, 7263, 9261, 13181, 16947, 39543, 50841, 92267, 118629, 276801, 355887, 830403, 2491209]

約数ペア:

[(1, 2491209), (3, 830403), (7, 355887), (9, 276801), (21, 118629), (27, 92267), (49, 50841), (63, 39543), (147, 16947), (189, 13181), (269, 9261), (343, 7263), (441, 5649), (807, 3087), (1029, 2421), (1323, 1883)]