21099876

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{239}}^1\times {\mathrm{1051}}^1$

素因数の和:1304

約数の個数: 48

約数和(自身を含む): 56555520

約数和(自身を除く): 35455644

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 239, 478, 717, 956, 1051, 1434, 1673, 2102, 2868, 3153, 3346, 4204, 5019, 6306, 6692, 7357, 10038, 12612, 14714, 20076, 22071, 29428, 44142, 88284, 251189, 502378, 753567, 1004756, 1507134, 1758323, 3014268, 3516646, 5274969, 7033292, 10549938, 21099876]

約数ペア:

[(1, 21099876), (2, 10549938), (3, 7033292), (4, 5274969), (6, 3516646), (7, 3014268), (12, 1758323), (14, 1507134), (21, 1004756), (28, 753567), (42, 502378), (84, 251189), (239, 88284), (478, 44142), (717, 29428), (956, 22071), (1051, 20076), (1434, 14714), (1673, 12612), (2102, 10038), (2868, 7357), (3153, 6692), (3346, 6306), (4204, 5019)]