217620711

素因数分解:

$3^2\times 7^2\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{397}}^1$

素因数の和:541

約数の個数: 72

約数和(自身を含む): 403447824

約数和(自身を除く): 185827113

約数列:

[1, 3, 7, 9, 11, 21, 33, 49, 63, 77, 99, 113, 147, 231, 339, 397, 441, 539, 693, 791, 1017, 1191, 1243, 1617, 2373, 2779, 3573, 3729, 4367, 4851, 5537, 7119, 8337, 8701, 11187, 13101, 16611, 19453, 25011, 26103, 30569, 39303, 44861, 49833, 58359, 60907, 78309, 91707, 134583, 175077, 182721, 213983, 275121, 314027, 403749, 493471, 548163, 641949, 942081, 1480413, 1925847, 2198189, 2826243, 3454297, 4441239, 6594567, 10362891, 19783701, 24180079, 31088673, 72540237, 217620711]

約数ペア:

[(1, 217620711), (3, 72540237), (7, 31088673), (9, 24180079), (11, 19783701), (21, 10362891), (33, 6594567), (49, 4441239), (63, 3454297), (77, 2826243), (99, 2198189), (113, 1925847), (147, 1480413), (231, 942081), (339, 641949), (397, 548163), (441, 493471), (539, 403749), (693, 314027), (791, 275121), (1017, 213983), (1191, 182721), (1243, 175077), (1617, 134583), (2373, 91707), (2779, 78309), (3573, 60907), (3729, 58359), (4367, 49833), (4851, 44861), (5537, 39303), (7119, 30569), (8337, 26103), (8701, 25011), (11187, 19453), (13101, 16611)]