27831951

素因数分解:

$3^3\times 7^2\times {\mathrm{109}}^1\times {\mathrm{193}}^1$

素因数の和:325

約数の個数: 48

約数和(自身を含む): 48655200

約数和(自身を除く): 20823249

約数列:

[1, 3, 7, 9, 21, 27, 49, 63, 109, 147, 189, 193, 327, 441, 579, 763, 981, 1323, 1351, 1737, 2289, 2943, 4053, 5211, 5341, 6867, 9457, 12159, 16023, 20601, 21037, 28371, 36477, 48069, 63111, 85113, 144207, 147259, 189333, 255339, 441777, 567999, 1030813, 1325331, 3092439, 3975993, 9277317, 27831951]

約数ペア:

[(1, 27831951), (3, 9277317), (7, 3975993), (9, 3092439), (21, 1325331), (27, 1030813), (49, 567999), (63, 441777), (109, 255339), (147, 189333), (189, 147259), (193, 144207), (327, 85113), (441, 63111), (579, 48069), (763, 36477), (981, 28371), (1323, 21037), (1351, 20601), (1737, 16023), (2289, 12159), (2943, 9457), (4053, 6867), (5211, 5341)]