28728243

素因数分解:

$3^3\times {\mathrm{37}}^1\times {\mathrm{149}}^1\times {\mathrm{193}}^1$

素因数の和:388

約数の個数: 32

約数和(自身を含む): 44232000

約数和(自身を除く): 15503757

約数列:

[1, 3, 9, 27, 37, 111, 149, 193, 333, 447, 579, 999, 1341, 1737, 4023, 5211, 5513, 7141, 16539, 21423, 28757, 49617, 64269, 86271, 148851, 192807, 258813, 776439, 1064009, 3192027, 9576081, 28728243]

約数ペア:

[(1, 28728243), (3, 9576081), (9, 3192027), (27, 1064009), (37, 776439), (111, 258813), (149, 192807), (193, 148851), (333, 86271), (447, 64269), (579, 49617), (999, 28757), (1341, 21423), (1737, 16539), (4023, 7141), (5211, 5513)]