21539595

素因数分解:

$3^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{1097}}^1$

素因数の和:1140

約数の個数: 64

約数和(自身を含む): 45536256

約数和(自身を除く): 23996661

約数列:

[1, 3, 5, 7, 11, 15, 17, 21, 33, 35, 51, 55, 77, 85, 105, 119, 165, 187, 231, 255, 357, 385, 561, 595, 935, 1097, 1155, 1309, 1785, 2805, 3291, 3927, 5485, 6545, 7679, 12067, 16455, 18649, 19635, 23037, 36201, 38395, 55947, 60335, 84469, 93245, 115185, 130543, 181005, 205139, 253407, 279735, 391629, 422345, 615417, 652715, 1025695, 1267035, 1435973, 1958145, 3077085, 4307919, 7179865, 21539595]

約数ペア:

[(1, 21539595), (3, 7179865), (5, 4307919), (7, 3077085), (11, 1958145), (15, 1435973), (17, 1267035), (21, 1025695), (33, 652715), (35, 615417), (51, 422345), (55, 391629), (77, 279735), (85, 253407), (105, 205139), (119, 181005), (165, 130543), (187, 115185), (231, 93245), (255, 84469), (357, 60335), (385, 55947), (561, 38395), (595, 36201), (935, 23037), (1097, 19635), (1155, 18649), (1309, 16455), (1785, 12067), (2805, 7679), (3291, 6545), (3927, 5485)]