28660149

素因数分解:

$3^5\times 7^2\times {\mathrm{29}}^1\times {\mathrm{83}}^1$

素因数の和:141

約数の個数: 72

約数和(自身を含む): 52284960

約数和(自身を除く): 23624811

約数列:

[1, 3, 7, 9, 21, 27, 29, 49, 63, 81, 83, 87, 147, 189, 203, 243, 249, 261, 441, 567, 581, 609, 747, 783, 1323, 1421, 1701, 1743, 1827, 2241, 2349, 2407, 3969, 4067, 4263, 5229, 5481, 6723, 7047, 7221, 11907, 12201, 12789, 15687, 16443, 16849, 20169, 21663, 36603, 38367, 47061, 49329, 50547, 64989, 109809, 115101, 117943, 141183, 151641, 194967, 329427, 345303, 353829, 454923, 584901, 988281, 1061487, 1364769, 3184461, 4094307, 9553383, 28660149]

約数ペア:

[(1, 28660149), (3, 9553383), (7, 4094307), (9, 3184461), (21, 1364769), (27, 1061487), (29, 988281), (49, 584901), (63, 454923), (81, 353829), (83, 345303), (87, 329427), (147, 194967), (189, 151641), (203, 141183), (243, 117943), (249, 115101), (261, 109809), (441, 64989), (567, 50547), (581, 49329), (609, 47061), (747, 38367), (783, 36603), (1323, 21663), (1421, 20169), (1701, 16849), (1743, 16443), (1827, 15687), (2241, 12789), (2349, 12201), (2407, 11907), (3969, 7221), (4067, 7047), (4263, 6723), (5229, 5481)]