21403629

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{17}}^2\times {\mathrm{211}}^1$

素因数の和:267

約数の個数: 48

約数和(自身を含む): 36447040

約数和(自身を除く): 15043411

約数列:

[1, 3, 9, 13, 17, 27, 39, 51, 117, 153, 211, 221, 289, 351, 459, 633, 663, 867, 1899, 1989, 2601, 2743, 3587, 3757, 5697, 5967, 7803, 8229, 10761, 11271, 24687, 32283, 33813, 46631, 60979, 74061, 96849, 101439, 139893, 182937, 419679, 548811, 792727, 1259037, 1646433, 2378181, 7134543, 21403629]

約数ペア:

[(1, 21403629), (3, 7134543), (9, 2378181), (13, 1646433), (17, 1259037), (27, 792727), (39, 548811), (51, 419679), (117, 182937), (153, 139893), (211, 101439), (221, 96849), (289, 74061), (351, 60979), (459, 46631), (633, 33813), (663, 32283), (867, 24687), (1899, 11271), (1989, 10761), (2601, 8229), (2743, 7803), (3587, 5967), (3757, 5697)]