18952947

素因数分解:

$3^4\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{439}}^1$

素因数の和:505

約数の個数: 40

約数和(自身を含む): 31305120

約数和(自身を除く): 12352173

約数列:

[1, 3, 9, 13, 27, 39, 41, 81, 117, 123, 351, 369, 439, 533, 1053, 1107, 1317, 1599, 3321, 3951, 4797, 5707, 11853, 14391, 17121, 17999, 35559, 43173, 51363, 53997, 154089, 161991, 233987, 462267, 485973, 701961, 1457919, 2105883, 6317649, 18952947]

約数ペア:

[(1, 18952947), (3, 6317649), (9, 2105883), (13, 1457919), (27, 701961), (39, 485973), (41, 462267), (81, 233987), (117, 161991), (123, 154089), (351, 53997), (369, 51363), (439, 43173), (533, 35559), (1053, 17999), (1107, 17121), (1317, 14391), (1599, 11853), (3321, 5707), (3951, 4797)]