28447587

素因数分解:

$3^2\times 7^2\times {\mathrm{251}}^1\times {\mathrm{257}}^1$

素因数の和:528

約数の個数: 36

約数和(自身を含む): 48176856

約数和(自身を除く): 19729269

約数列:

[1, 3, 7, 9, 21, 49, 63, 147, 251, 257, 441, 753, 771, 1757, 1799, 2259, 2313, 5271, 5397, 12299, 12593, 15813, 16191, 36897, 37779, 64507, 110691, 113337, 193521, 451549, 580563, 1354647, 3160843, 4063941, 9482529, 28447587]

約数ペア:

[(1, 28447587), (3, 9482529), (7, 4063941), (9, 3160843), (21, 1354647), (49, 580563), (63, 451549), (147, 193521), (251, 113337), (257, 110691), (441, 64507), (753, 37779), (771, 36897), (1757, 16191), (1799, 15813), (2259, 12593), (2313, 12299), (5271, 5397)]