209719503

素因数分解:

$3^3\times 7^1\times {\mathrm{29}}^1\times {\mathrm{83}}^1\times {\mathrm{461}}^1$

素因数の和:589

約数の個数: 64

約数和(自身を含む): 372556800

約数和(自身を除く): 162837297

約数列:

[1, 3, 7, 9, 21, 27, 29, 63, 83, 87, 189, 203, 249, 261, 461, 581, 609, 747, 783, 1383, 1743, 1827, 2241, 2407, 3227, 4149, 5229, 5481, 7221, 9681, 12447, 13369, 15687, 16849, 21663, 29043, 38263, 40107, 50547, 64989, 87129, 93583, 114789, 120321, 151641, 267841, 280749, 344367, 360963, 454923, 803523, 842247, 1033101, 1109627, 2410569, 2526741, 3328881, 7231707, 7767389, 9986643, 23302167, 29959929, 69906501, 209719503]

約数ペア:

[(1, 209719503), (3, 69906501), (7, 29959929), (9, 23302167), (21, 9986643), (27, 7767389), (29, 7231707), (63, 3328881), (83, 2526741), (87, 2410569), (189, 1109627), (203, 1033101), (249, 842247), (261, 803523), (461, 454923), (581, 360963), (609, 344367), (747, 280749), (783, 267841), (1383, 151641), (1743, 120321), (1827, 114789), (2241, 93583), (2407, 87129), (3227, 64989), (4149, 50547), (5229, 40107), (5481, 38263), (7221, 29043), (9681, 21663), (12447, 16849), (13369, 15687)]