12972339

素因数分解:

$3^3\times {\mathrm{67}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:248

約数の個数: 32

約数和(自身を含む): 19975680

約数和(自身を除く): 7003341

約数列:

[1, 3, 9, 27, 67, 71, 101, 201, 213, 303, 603, 639, 909, 1809, 1917, 2727, 4757, 6767, 7171, 14271, 20301, 21513, 42813, 60903, 64539, 128439, 182709, 193617, 480457, 1441371, 4324113, 12972339]

約数ペア:

[(1, 12972339), (3, 4324113), (9, 1441371), (27, 480457), (67, 193617), (71, 182709), (101, 128439), (201, 64539), (213, 60903), (303, 42813), (603, 21513), (639, 20301), (909, 14271), (1809, 7171), (1917, 6767), (2727, 4757)]