28412559

素因数分解:

$3^3\times 7^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{239}}^1$

素因数の和:309

約数の個数: 64

約数和(自身を含む): 52531200

約数和(自身を除く): 24118641

約数列:

[1, 3, 7, 9, 17, 21, 27, 37, 51, 63, 111, 119, 153, 189, 239, 259, 333, 357, 459, 629, 717, 777, 999, 1071, 1673, 1887, 2151, 2331, 3213, 4063, 4403, 5019, 5661, 6453, 6993, 8843, 12189, 13209, 15057, 16983, 26529, 28441, 36567, 39627, 45171, 61901, 79587, 85323, 109701, 118881, 150331, 185703, 238761, 255969, 450993, 557109, 767907, 1052317, 1352979, 1671327, 3156951, 4058937, 9470853, 28412559]

約数ペア:

[(1, 28412559), (3, 9470853), (7, 4058937), (9, 3156951), (17, 1671327), (21, 1352979), (27, 1052317), (37, 767907), (51, 557109), (63, 450993), (111, 255969), (119, 238761), (153, 185703), (189, 150331), (239, 118881), (259, 109701), (333, 85323), (357, 79587), (459, 61901), (629, 45171), (717, 39627), (777, 36567), (999, 28441), (1071, 26529), (1673, 16983), (1887, 15057), (2151, 13209), (2331, 12189), (3213, 8843), (4063, 6993), (4403, 6453), (5019, 5661)]