55389159

素因数分解:

$3^2\times 7^2\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:181

約数の個数: 72

約数和(自身を含む): 99234720

約数和(自身を除く): 43845561

約数列:

[1, 3, 7, 9, 21, 29, 49, 61, 63, 71, 87, 147, 183, 203, 213, 261, 427, 441, 497, 549, 609, 639, 1281, 1421, 1491, 1769, 1827, 2059, 2989, 3479, 3843, 4263, 4331, 4473, 5307, 6177, 8967, 10437, 12383, 12789, 12993, 14413, 15921, 18531, 26901, 30317, 31311, 37149, 38979, 43239, 86681, 90951, 100891, 111447, 125599, 129717, 212219, 260043, 272853, 302673, 376797, 636657, 780129, 879193, 908019, 1130391, 1909971, 2637579, 6154351, 7912737, 18463053, 55389159]

約数ペア:

[(1, 55389159), (3, 18463053), (7, 7912737), (9, 6154351), (21, 2637579), (29, 1909971), (49, 1130391), (61, 908019), (63, 879193), (71, 780129), (87, 636657), (147, 376797), (183, 302673), (203, 272853), (213, 260043), (261, 212219), (427, 129717), (441, 125599), (497, 111447), (549, 100891), (609, 90951), (639, 86681), (1281, 43239), (1421, 38979), (1491, 37149), (1769, 31311), (1827, 30317), (2059, 26901), (2989, 18531), (3479, 15921), (3843, 14413), (4263, 12993), (4331, 12789), (4473, 12383), (5307, 10437), (6177, 8967)]