28985229

素因数分解:

$3^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{47}}^1\times {\mathrm{251}}^1$

素因数の和:327

約数の個数: 64

約数和(自身を含む): 54190080

約数和(自身を除く): 25204851

約数列:

[1, 3, 7, 9, 13, 21, 27, 39, 47, 63, 91, 117, 141, 189, 251, 273, 329, 351, 423, 611, 753, 819, 987, 1269, 1757, 1833, 2259, 2457, 2961, 3263, 4277, 5271, 5499, 6777, 8883, 9789, 11797, 12831, 15813, 16497, 22841, 29367, 35391, 38493, 47439, 68523, 82579, 88101, 106173, 115479, 153361, 205569, 247737, 318519, 460083, 616707, 743211, 1073527, 1380249, 2229633, 3220581, 4140747, 9661743, 28985229]

約数ペア:

[(1, 28985229), (3, 9661743), (7, 4140747), (9, 3220581), (13, 2229633), (21, 1380249), (27, 1073527), (39, 743211), (47, 616707), (63, 460083), (91, 318519), (117, 247737), (141, 205569), (189, 153361), (251, 115479), (273, 106173), (329, 88101), (351, 82579), (423, 68523), (611, 47439), (753, 38493), (819, 35391), (987, 29367), (1269, 22841), (1757, 16497), (1833, 15813), (2259, 12831), (2457, 11797), (2961, 9789), (3263, 8883), (4277, 6777), (5271, 5499)]