21818286

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{43}}^1\times {\mathrm{4027}}^1$

素因数の和:4085

約数の個数: 48

約数和(自身を含む): 55296384

約数和(自身を除く): 33478098

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 42, 43, 63, 86, 126, 129, 258, 301, 387, 602, 774, 903, 1806, 2709, 4027, 5418, 8054, 12081, 24162, 28189, 36243, 56378, 72486, 84567, 169134, 173161, 253701, 346322, 507402, 519483, 1038966, 1212127, 1558449, 2424254, 3116898, 3636381, 7272762, 10909143, 21818286]

約数ペア:

[(1, 21818286), (2, 10909143), (3, 7272762), (6, 3636381), (7, 3116898), (9, 2424254), (14, 1558449), (18, 1212127), (21, 1038966), (42, 519483), (43, 507402), (63, 346322), (86, 253701), (126, 173161), (129, 169134), (258, 84567), (301, 72486), (387, 56378), (602, 36243), (774, 28189), (903, 24162), (1806, 12081), (2709, 8054), (4027, 5418)]