28426437

素因数分解:

$3^3\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{743}}^1$

素因数の和:874

約数の個数: 32

約数和(自身を含む): 45830400

約数和(自身を除く): 17403963

約数列:

[1, 3, 9, 13, 27, 39, 109, 117, 327, 351, 743, 981, 1417, 2229, 2943, 4251, 6687, 9659, 12753, 20061, 28977, 38259, 80987, 86931, 242961, 260793, 728883, 1052831, 2186649, 3158493, 9475479, 28426437]

約数ペア:

[(1, 28426437), (3, 9475479), (9, 3158493), (13, 2186649), (27, 1052831), (39, 728883), (109, 260793), (117, 242961), (327, 86931), (351, 80987), (743, 38259), (981, 28977), (1417, 20061), (2229, 12753), (2943, 9659), (4251, 6687)]