21556773

素因数分解:

$3^5\times 7^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{29}}^1$

素因数の和:93

約数の個数: 96

約数和(自身を含む): 41932800

約数和(自身を除く): 20376027

約数列:

[1, 3, 7, 9, 19, 21, 23, 27, 29, 57, 63, 69, 81, 87, 133, 161, 171, 189, 203, 207, 243, 261, 399, 437, 483, 513, 551, 567, 609, 621, 667, 783, 1197, 1311, 1449, 1539, 1653, 1701, 1827, 1863, 2001, 2349, 3059, 3591, 3857, 3933, 4347, 4617, 4669, 4959, 5481, 5589, 6003, 7047, 9177, 10773, 11571, 11799, 12673, 13041, 14007, 14877, 16443, 18009, 27531, 32319, 34713, 35397, 38019, 39123, 42021, 44631, 49329, 54027, 82593, 88711, 104139, 106191, 114057, 126063, 133893, 162081, 247779, 266133, 312417, 342171, 378189, 743337, 798399, 937251, 1026513, 1134567, 2395197, 3079539, 7185591, 21556773]

約数ペア:

[(1, 21556773), (3, 7185591), (7, 3079539), (9, 2395197), (19, 1134567), (21, 1026513), (23, 937251), (27, 798399), (29, 743337), (57, 378189), (63, 342171), (69, 312417), (81, 266133), (87, 247779), (133, 162081), (161, 133893), (171, 126063), (189, 114057), (203, 106191), (207, 104139), (243, 88711), (261, 82593), (399, 54027), (437, 49329), (483, 44631), (513, 42021), (551, 39123), (567, 38019), (609, 35397), (621, 34713), (667, 32319), (783, 27531), (1197, 18009), (1311, 16443), (1449, 14877), (1539, 14007), (1653, 13041), (1701, 12673), (1827, 11799), (1863, 11571), (2001, 10773), (2349, 9177), (3059, 7047), (3591, 6003), (3857, 5589), (3933, 5481), (4347, 4959), (4617, 4669)]