21764666

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{97}}^1$

素因数の和:195

約数の個数: 64

約数和(自身を含む): 43352064

約数和(自身を除く): 21587398

約数列:

[1, 2, 7, 11, 14, 22, 31, 47, 62, 77, 94, 97, 154, 194, 217, 329, 341, 434, 517, 658, 679, 682, 1034, 1067, 1358, 1457, 2134, 2387, 2914, 3007, 3619, 4559, 4774, 6014, 7238, 7469, 9118, 10199, 14938, 16027, 20398, 21049, 31913, 32054, 33077, 42098, 50149, 63826, 66154, 100298, 112189, 141329, 224378, 231539, 282658, 351043, 463078, 702086, 989303, 1554619, 1978606, 3109238, 10882333, 21764666]

約数ペア:

[(1, 21764666), (2, 10882333), (7, 3109238), (11, 1978606), (14, 1554619), (22, 989303), (31, 702086), (47, 463078), (62, 351043), (77, 282658), (94, 231539), (97, 224378), (154, 141329), (194, 112189), (217, 100298), (329, 66154), (341, 63826), (434, 50149), (517, 42098), (658, 33077), (679, 32054), (682, 31913), (1034, 21049), (1067, 20398), (1358, 16027), (1457, 14938), (2134, 10199), (2387, 9118), (2914, 7469), (3007, 7238), (3619, 6014), (4559, 4774)]