28196883

素因数分解:

$3^3\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{109}}^1$

素因数の和:209

約数の個数: 64

約数和(自身を含む): 50265600

約数和(自身を除く): 22068717

約数列:

[1, 3, 9, 11, 13, 27, 33, 39, 67, 99, 109, 117, 143, 201, 297, 327, 351, 429, 603, 737, 871, 981, 1199, 1287, 1417, 1809, 2211, 2613, 2943, 3597, 3861, 4251, 6633, 7303, 7839, 9581, 10791, 12753, 15587, 19899, 21909, 23517, 28743, 32373, 38259, 46761, 65727, 80333, 86229, 94939, 140283, 197181, 240999, 258687, 284817, 420849, 722997, 854451, 1044329, 2168991, 2563353, 3132987, 9398961, 28196883]

約数ペア:

[(1, 28196883), (3, 9398961), (9, 3132987), (11, 2563353), (13, 2168991), (27, 1044329), (33, 854451), (39, 722997), (67, 420849), (99, 284817), (109, 258687), (117, 240999), (143, 197181), (201, 140283), (297, 94939), (327, 86229), (351, 80333), (429, 65727), (603, 46761), (737, 38259), (871, 32373), (981, 28743), (1199, 23517), (1287, 21909), (1417, 19899), (1809, 15587), (2211, 12753), (2613, 10791), (2943, 9581), (3597, 7839), (3861, 7303), (4251, 6633)]